From db131dd7f6e5f9c222198a74b3f11e7f99f4da70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?llu=C3=ADs=20g=C3=B3mez=20i=20bigord=C3=A0?=
 <lluisbigorda@users.sourceforge.net>
Date: Sun, 25 May 2008 21:32:41 +0000
Subject: First svn commit

svn path=/trunk/externals/pdp_opencv/; revision=9912
---
 Makefile                                 |    16 +
 Makefile.config                          |    25 +
 README                                   |     1 +
 TODO                                     |   154 +
 examples/Mouth.xml                       | 21991 ++++++++++++++++++++++++
 examples/haarcascade_frontalface_alt.xml | 26161 +++++++++++++++++++++++++++++
 help_pdp_opencv_bgsubstract.pd           |    13 +
 help_pdp_opencv_contours_boundingrect.pd |    28 +
 help_pdp_opencv_contours_composition.pd  |    49 +
 help_pdp_opencv_contours_convexity.pd    |    92 +
 help_pdp_opencv_distrans.pd              |    45 +
 help_pdp_opencv_edge.pd                  |    30 +
 help_pdp_opencv_floodfill.pd             |    20 +
 help_pdp_opencv_haarcascade.pd           |    61 +
 help_pdp_opencv_laplace.pd               |    30 +
 help_pdp_opencv_lk.pd                    |    18 +
 help_pdp_opencv_morphology.pd            |    45 +
 help_pdp_opencv_motempl.pd               |   115 +
 help_pdp_opencv_threshold.pd             |    19 +
 pdp_opencv.c                             |    81 +
 pdp_opencv_bgsubstract.c                 |   264 +
 pdp_opencv_contours_boundingrect.c       |   320 +
 pdp_opencv_contours_convexity.c          |   455 +
 pdp_opencv_distrans.c                    |   362 +
 pdp_opencv_edge.c                        |   272 +
 pdp_opencv_floodfill.c                   |   333 +
 pdp_opencv_haarcascade.c                 |   356 +
 pdp_opencv_laplace.c                     |   266 +
 pdp_opencv_lk.c                          |   345 +
 pdp_opencv_morphology.c                  |   313 +
 pdp_opencv_motempl.c                     |   448 +
 pdp_opencv_threshold.c                   |   288 +
 32 files changed, 53016 insertions(+)
 create mode 100644 Makefile
 create mode 100644 Makefile.config
 create mode 100644 README
 create mode 100644 TODO
 create mode 100644 examples/Mouth.xml
 create mode 100644 examples/haarcascade_frontalface_alt.xml
 create mode 100644 help_pdp_opencv_bgsubstract.pd
 create mode 100644 help_pdp_opencv_contours_boundingrect.pd
 create mode 100644 help_pdp_opencv_contours_composition.pd
 create mode 100644 help_pdp_opencv_contours_convexity.pd
 create mode 100644 help_pdp_opencv_distrans.pd
 create mode 100644 help_pdp_opencv_edge.pd
 create mode 100644 help_pdp_opencv_floodfill.pd
 create mode 100644 help_pdp_opencv_haarcascade.pd
 create mode 100644 help_pdp_opencv_laplace.pd
 create mode 100644 help_pdp_opencv_lk.pd
 create mode 100644 help_pdp_opencv_morphology.pd
 create mode 100644 help_pdp_opencv_motempl.pd
 create mode 100644 help_pdp_opencv_threshold.pd
 create mode 100644 pdp_opencv.c
 create mode 100644 pdp_opencv_bgsubstract.c
 create mode 100644 pdp_opencv_contours_boundingrect.c
 create mode 100644 pdp_opencv_contours_convexity.c
 create mode 100644 pdp_opencv_distrans.c
 create mode 100644 pdp_opencv_edge.c
 create mode 100644 pdp_opencv_floodfill.c
 create mode 100644 pdp_opencv_haarcascade.c
 create mode 100644 pdp_opencv_laplace.c
 create mode 100644 pdp_opencv_lk.c
 create mode 100644 pdp_opencv_morphology.c
 create mode 100644 pdp_opencv_motempl.c
 create mode 100644 pdp_opencv_threshold.c

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..93b013c
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,16 @@
+current: all
+
+include Makefile.config
+
+PDP_MOD = pdp_opencv_threshold.o pdp_opencv_edge.o pdp_opencv_distrans.o pdp_opencv_laplace.o pdp_opencv_motempl.o pdp_opencv_morphology.o pdp_opencv_haarcascade.o pdp_opencv_contours_convexity.o pdp_opencv_contours_boundingrect.o pdp_opencv_bgsubstract.o pdp_opencv_lk.o pdp_opencv_floodfill.o pdp_opencv.o 
+
+
+# build basic image processing modules (derived from base class)
+all: $(PDP_MOD)
+	$(CC) -export_dynamic -shared -o pdp_opencv.pd_linux *.o $(PDP_LIBS) `pkg-config --cflags --libs opencv`
+
+clean:
+	rm -f *~
+	rm -f *.o
+	rm -f *.pd_linux
+
diff --git a/Makefile.config b/Makefile.config
new file mode 100644
index 0000000..0273e28
--- /dev/null
+++ b/Makefile.config
@@ -0,0 +1,25 @@
+# if configure can't find the m_pd.h header         
+# specify pd's include path here and ignore the warning
+#
+OPENCV_CPPFLAGS=-I/usr/include/opencv/
+PD_CPPFLAGS=-I/usr/src/pd-0.40-2/src
+PDP_CFLAGS=-I/usr/src/pdp-0.12.5-test-7/include -DPD -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -O2 -funroll-loops -fomit-frame-pointer -ffast-math -freg-struct-return -DLINUX 
+
+prefix=/usr/local
+PDP_CV_VERSION = 0.0.1
+PDP_TARGET = linux
+PDP_LIBRARY_NAME = pdp_opencv.pd_linux
+
+PDP_CPPFLAGS =  -I. -I/usr/X11R6/include  -I../include -I../../include $(PD_CPPFLAGS) $(OPENCV_CPPFLAGS) 
+#--gstabs
+
+PDP_CFLAGS += -DPDP_CV_VERSION=\"$(PDP_CV_VERSION)\" 
+
+CC = gcc
+
+# build rules
+
+.c.o:
+	$(CC) $(PDP_CFLAGS) $(PDP_CPPFLAGS) -o $*.o -c $*.c
+.s.o:
+	$(AS) -o $*.o $*.s $(PDP_AFLAGS) `pkg-config --cflags --libs opencv`
diff --git a/README b/README
new file mode 100644
index 0000000..a138819
--- /dev/null
+++ b/README
@@ -0,0 +1 @@
+See docs/index.htm
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..e2fe0f8
--- /dev/null
+++ b/TODO
@@ -0,0 +1,154 @@
+###########################
+model de treball tesis ::: segui tot aquest document file:///usr/share/doc/opencv-doc/ref i anar-lo estudiant ampliant ... etc ... pensant posibles aplicacions en l'art ... a fons i molt ben documentat
+mirant tambe aqui file:///usr/share/doc/opencv-doc/papers per ampliar i altres documents a la xarxa
+###########################
+
+en tots els objectes ... en la funcio pdp_opencv_elquesigui_process fer un case "PDP_IMAGE_YUV" o el(s) que sigui i cridar pdp_llconv per a despres poder cridar pdp_opencv_elquesigui_process_rgb ... 
+
+pdp_opencv_motempl.c
+	s'han de fer variables alguns parametres que ara mateix esta cm a constants::
+		 
+		const double MHI_DURATION = 1;
+		const double MAX_TIME_DELTA = 0.5;
+		const double MIN_TIME_DELTA = 0.05;
+		const int N = 4;
+		tambe lo gran que vols el cercle (la variable magnitude li diu ell) ... lo ideal seria que aquesta fos relatica a la cuantitat de moviment ... no? ... (comp_rect.width + comp_rect.height) ... fes una cerca de "reject very small components" per trobar el lloc exacte on esta tocant aixo ... 
+		i fer que ens els outlets ens doni ... x,y,heigh,width,angle de cada un dels componoents ... 
+
+	aqui hi ha algo de info sobre com funciona aquest exemple
+	file:///usr/share/doc/opencv-doc/ref/opencvref_cv.htm#cv_motion_motempl
+	basicament veig que usa cvUpdateMotionHistory - cvCalcMotionGradient - cvSegmentMotion - cvSetImageROI - cvCalcGlobalOrientation - 
+
+	s'ha de fer que les dades dels "blobs?" surtin per algun outlet !!!!
+	veure si les etiquetes es mantenen ... al primer cop que ho fas hauries de anomenar cada un dels blobs, als seguents simplement afegirlo a la llista de la sortida possiblement substituintla per i(numero de blob)
+
+afegr el parametre apperture size al pdp_opencv_laplace :: http://www.cognotics.com/opencv/docs/1.0/ref/opencvref_cv.htm#decl_cvLaplace
+
+
+
+#########################
+mira sempre la documentacio aqui http://opencvlibrary.sourceforge.net/
+#########################
+
+
+blob detection http://opencvlibrary.sourceforge.net/cvBlobsLib
+
+find contours ... http://isa.umh.es/pfc/rmvision/opencvdocs/ref/OpenCVRef_ImageProcessing.htm#decl_cvFindContours
+			Example. Connected component detection via contour functions
+			/usr/share/doc/opencv-doc/examples/contours.c:
+		 	/usr/share/doc/opencv-doc/examples/fitellipse.c:
+			/usr/share/doc/opencv-doc/examples/squares.c:
+	/home/test/Desktop/opencv/2503_project_report.pdf
+	contours, i despres ... Peak and valley detection --- CvConvexityDefect (http://groups.google.co.in/group/OpenCV/browse_thread/thread/1d472ac178ba8020)
+	http://www.koders.com/c/fidCD4BE43F722BE11420690D3EEEF359CE428E36AE.aspx
+
+aqui hi ha moltes aplicacions bones:::
+http://opencvlibrary.cvs.sourceforge.net/opencvlibrary/opencv/apps/ 
+
+i aqui especialment:
+http://opencvlibrary.cvs.sourceforge.net/opencvlibrary/opencv/apps/Hawk/demos/
+
+be i en general tots els samples/c/ son diferents ara ... n'hi ha molts mes
+
+background extraction
+
+./lkdemo
+/camshiftdemo	
+
+object detection ... http://opencvlibrary.sourceforge.net/ObjectDetection
+
+face recognition ... http://opencvlibrary.sourceforge.net/FaceRecognition
+
+		     http://opencvlibrary.sourceforge.net/FaceDetection
+		     
+Video survillance .. http://opencvlibrary.sourceforge.net/VideoSurveillance //es un pix_movment???
+
+
+face detection ... http://www.hci.iastate.edu/575x/doku.php?id=tutorial4 ... facedetect.c
+
+find and process contours ... squares.c
+
+camera calibration http://www.youtube.com/watch?v=Q2eIv6UiGIc
+homografia 	   http://www.youtube.com/watch?v=LCzF8VuubEw
+
+optical flow detection http://www.youtube.com/watch?v=0MtMxqJ6hF4&NR=1
+
+motion tracking kalman filter   http://www.youtube.com/watch?v=iAhwCFLnRWc
+				http://www.youtube.com/watch?v=U1L0X4cts8o&feature=related
+
+color tracking + calman filter  http://www.youtube.com/watch?v=1iwvL83Cumo&feature=related
+
+llegir pixels independents ... http://www.hci.iastate.edu/575x/doku.php?id=code_samples:reading_writing_pixels
+
+smoothing filters ... http://www.hci.iastate.edu/575x/doku.php?id=code_samples:smoothing_filters
+
+binary treshold ... http://www.hci.iastate.edu/575x/doku.php?id=code_samples:sliders_threshold
+
+video_writer ??? .... http://www.hci.iastate.edu/575x/doku.php?id=code_samples:video_output
+
+
+altres coses a la referencia ::: http://www.cognotics.com/opencv/docs/1.0/ref/opencvref_cv.htm (un objecte x cada funció)
+	Sobel
+	FindContours
+
+	GetRectSubPix
+	2DRotationMatrix
+	WarpPerspective
+
+	MorphologyEx
+
+	Smooth
+	Filter2D (convolve)
+	CopyMakeBorder
+	Integral
+	
+	CvtColor (colorspace conversions)
+
+	FloodFill
+	FindContours
+
+	GetSpatialMoment
+
+	HoughLines2 ... Detecting lines with Hough transform.	
+		
+	CvHistogram ... Sample. Calculating and displaying 2D Hue-Saturation histogram of a color image
+
+	MatchTemplate
+
+	FindNearestPoint2D
+
+	SegmentMotion
+
+	
+	Example. Using Kalman filter to track a rotating point
+
+	Object Detection :::  Example. Using cascade of Haar classifiers to find objects (e.g. faces).
+
+
+	Camera Calibration
+	Undistort2
+	
+
+
+
+de http://www.cognotics.com/opencv/docs/1.0/ref/opencvref_cxcore.htm
+	Merge	
+	MixChannels
+
+	Arithmetic, Logic and Comparison
+	
+	Normalize
+	
+
+
+
+http://www.cognotics.com/opencv/docs/1.0/ref/opencvref_ml.htm ???????
+
+
+
+
+
+write text ... http://www.hci.iastate.edu/575x/doku.php?id=code_samples:adding_text
+simple edge ... http://www.hci.iastate.edu/575x/doku.php?id=code_samples:edge_detection
+
+http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html#SECTION00053000000000000000
diff --git a/examples/Mouth.xml b/examples/Mouth.xml
new file mode 100644
index 0000000..ae4ee24
--- /dev/null
+++ b/examples/Mouth.xml
@@ -0,0 +1,21991 @@
+<?xml version="1.0"?>
+<!----------------------------------------------------------------------------
+  25x15 Mouth detector computed with 7000 positive samples
+
+//////////////////////////////////////////////////////////////////////////
+| Contributors License Agreement
+| IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+|   By downloading, copying, installing or using the software you agree 
+|   to this license.
+|   If you do not agree to this license, do not download, install,
+|   copy or use the software.
+|
+| Copyright (c) 2006, Modesto Castrillon-Santana (IUSIANI, University of
+| Las Palmas de Gran Canaria, Spain).
+|  All rights reserved.
+|
+| Redistribution and use in source and binary forms, with or without
+| modification, are permitted provided that the following conditions are
+| met:
+|
+|    * Redistributions of source code must retain the above copyright
+|       notice, this list of conditions and the following disclaimer.
+|    * Redistributions in binary form must reproduce the above
+|      copyright notice, this list of conditions and the following
+|      disclaimer in the documentation and/or other materials provided
+|      with the distribution.  
+|    * The name of Contributor may not used to endorse or promote products 
+|      derived from this software without specific prior written permission.
+|
+| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+| CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  Back to
+| Top
+//////////////////////////////////////////////////////////////////////////
+
+RESEARCH USE:
+If you are using any of the detectors or involved ideas please cite one of these papers:
+
+@ARTICLE{Castrillon07-jvci,
+  author =       "Castrill\'on Santana, M. and D\'eniz Su\'arez, O. and Hern\'andez Tejera, M. and Guerra Artal, C.",
+  title =        "ENCARA2: Real-time Detection of Multiple Faces at Different Resolutions in Video Streams",
+  journal =      "Journal of Visual Communication and Image Representation",
+  year =         "2007",
+  vol =          "18",
+  issue =        "2",
+  month =        "April",
+  pages =        "130-140"
+}
+
+@INPROCEEDINGS{Castrillon07-swb,
+  author =       "Castrill\'on Santana, M. and D\'eniz Su\'arez, O. and Hern\'andez Sosa, D. and Lorenzo Navarro, J. ",
+  title =        "Using Incremental Principal Component Analysis to Learn a Gender Classifier Automatically",
+  booktitle =    "1st Spanish Workshop on Biometrics",
+  year =         "2007",
+  month =        "June",
+  address =      "Girona, Spain",
+  file = F
+}
+
+A comparison of this and other face related classifiers can be found in:
+
+@InProceedings{Castrillon08a-visapp,
+ 'athor =       "Modesto Castrill\'on-Santana and O. D\'eniz-Su\'arez, L. Ant\'on-Canal\'{\i}s and J. Lorenzo-Navarro",
+  title =        "Face and Facial Feature Detection Evaluation"
+  booktitle =    "Third International Conference on Computer Vision Theory and Applications, VISAPP08"
+  year =         "2008",
+  month =        "January"
+}
+
+More information can be found at http://mozart.dis.ulpgc.es/Gias/modesto_eng.html or in the papers.
+
+COMMERCIAL USE:
+If you have any commercial interest in this work please contact 
+mcastrillon@iusiani.ulpgc.es
+------------------------------------------------------------------------>
+<opencv_storage>
+<Boca_17stages type_id="opencv-haar-classifier">
+  <size>
+    25 15</size>
+  <stages>
+    <_>
+      <!-- stage 0 -->
+      <trees>
+        <_>
+          <!-- tree 0 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  0 0 14 9 -1.</_>
+                <_>
+                  0 3 14 3 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-0.1192855015397072</threshold>
+            <left_val>0.7854182124137878</left_val>
+            <right_val>-0.4541360139846802</right_val></_></_>
+        <_>
+          <!-- tree 1 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  17 1 8 14 -1.</_>
+                <_>
+                  17 8 8 7 2.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-0.0641647726297379</threshold>
+            <left_val>-0.7407680749893189</left_val>
+            <right_val>0.2652035951614380</right_val></_></_>
+        <_>
+          <!-- tree 2 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  7 3 11 6 -1.</_>
+                <_>
+                  7 5 11 2 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>0.0910761803388596</threshold>
+            <left_val>-0.2063370943069458</left_val>
+            <right_val>0.8400946259498596</right_val></_></_>
+        <_>
+          <!-- tree 3 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  5 2 15 6 -1.</_>
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+                  5 4 15 2 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-0.1129330024123192</threshold>
+            <left_val>0.8284121751785278</left_val>
+            <right_val>-0.1866362988948822</right_val></_></_>
+        <_>
+          <!-- tree 4 -->
+          <_>
+            <!-- root node -->
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+              <rects>
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+                <_>
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+            <threshold>-0.0741933435201645</threshold>
+            <left_val>0.8354660272598267</left_val>
+            <right_val>-0.1527701020240784</right_val></_></_>
+        <_>
+          <!-- tree 5 -->
+          <_>
+            <!-- root node -->
+            <feature>
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+                <_>
+                  17 1 6 3 -1.</_>
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+                  19 1 2 3 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>2.1404659491963685e-005</threshold>
+            <left_val>-0.0716945603489876</left_val>
+            <right_val>0.1858334988355637</right_val></_></_>
+        <_>
+          <!-- tree 6 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
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+                <_>
+                  5 2 15 2 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-0.0996975302696228</threshold>
+            <left_val>0.6870458126068115</left_val>
+            <right_val>-0.1721730977296829</right_val></_></_>
+        <_>
+          <!-- tree 7 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  7 3 13 6 -1.</_>
+                <_>
+                  7 5 13 2 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-0.0900413617491722</threshold>
+            <left_val>0.7310237884521484</left_val>
+            <right_val>-0.1368771940469742</right_val></_></_>
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+          <!-- tree 8 -->
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+            <!-- root node -->
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+              <rects>
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+            <threshold>2.5138311320915818e-004</threshold>
+            <left_val>-0.3469826877117157</left_val>
+            <right_val>0.3647777140140533</right_val></_></_>
+        <_>
+          <!-- tree 9 -->
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+            <!-- root node -->
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+                <_>
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+              <tilted>0</tilted></feature>
+            <threshold>1.6144449546118267e-005</threshold>
+            <left_val>-0.3085466027259827</left_val>
+            <right_val>0.2320024073123932</right_val></_></_>
+        <_>
+          <!-- tree 10 -->
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+            <!-- root node -->
+            <feature>
+              <rects>
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+                  0 3 3 12 -1.</_>
+                <_>
+                  0 7 3 4 3.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>1.9363909814273939e-005</threshold>
+            <left_val>-0.3819856047630310</left_val>
+            <right_val>0.2404107004404068</right_val></_></_>
+        <_>
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+            <!-- root node -->
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+              <tilted>0</tilted></feature>
+            <threshold>6.9673648104071617e-003</threshold>
+            <left_val>0.0545878112316132</left_val>
+            <right_val>-0.7487065792083740</right_val></_></_>
+        <_>
+          <!-- tree 12 -->
+          <_>
+            <!-- root node -->
+            <feature>
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+                <_>
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+                  0 11 3 2 2.</_></rects>
+              <tilted>0</tilted></feature>
+            <threshold>-4.7189309261739254e-003</threshold>
+            <left_val>-0.7476686835289002</left_val>
+            <right_val>0.1205869019031525</right_val></_></_></trees>
+      <stage_threshold>-1.4372119903564453</stage_threshold>
+      <parent>-1</parent>
+      <next>-1</next></_>
+    <_>
+      <!-- stage 1 -->
+      <trees>
+        <_>
+          <!-- tree 0 -->
+          <_>
+            <!-- root node -->
+            <feature>
+              <rects>
+                <_>
+                  5 0 15 8 -1.</_>
+                <_>
+                  5 2 15 4 2.</_></rects>
+              <tilted>0</tilted></feature>
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+      <stage_threshold>-1.2540320158004761</stage_threshold>
+      <parent>15</parent>
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+</opencv_storage>
diff --git a/examples/haarcascade_frontalface_alt.xml b/examples/haarcascade_frontalface_alt.xml
new file mode 100644
index 0000000..af48bab
--- /dev/null
+++ b/examples/haarcascade_frontalface_alt.xml
@@ -0,0 +1,26161 @@
+<?xml version="1.0"?>
+<!--
+    Stump-based 20x20 gentle adaboost frontal face detector.
+    Created by Rainer Lienhart.
+
+////////////////////////////////////////////////////////////////////////////////////////
+
+  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+
+  By downloading, copying, installing or using the software you agree to this license.
+  If you do not agree to this license, do not download, install,
+  copy or use the software.
+
+
+                        Intel License Agreement
+                For Open Source Computer Vision Library
+
+ Copyright (C) 2000, Intel Corporation, all rights reserved.
+ Third party copyrights are property of their respective owners.
+
+ Redistribution and use in source and binary forms, with or without modification,
+ are permitted provided that the following conditions are met:
+
+   * Redistribution's of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+   * Redistribution's in binary form must reproduce the above copyright notice,
+     this list of conditions and the following disclaimer in the documentation
+     and/or other materials provided with the distribution.
+
+   * The name of Intel Corporation may not be used to endorse or promote products
+     derived from this software without specific prior written permission.
+
+ This software is provided by the copyright holders and contributors "as is" and
+ any express or implied warranties, including, but not limited to, the implied
+ warranties of merchantability and fitness for a particular purpose are disclaimed.
+ In no event shall the Intel Corporation or contributors be liable for any direct,
+ indirect, incidental, special, exemplary, or consequential damages
+ (including, but not limited to, procurement of substitute goods or services;
+ loss of use, data, or profits; or business interruption) however caused
+ and on any theory of liability, whether in contract, strict liability,
+ or tort (including negligence or otherwise) arising in any way out of
+ the use of this software, even if advised of the possibility of such damage.
+-->
+<opencv_storage>
+<haarcascade_frontalface_alt type_id="opencv-haar-classifier">
+  <size>20 20</size>
+  <stages>
+    <_>
+      <!-- stage 0 -->
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+            <right_val>0.8378106951713562</right_val></_></_>
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diff --git a/help_pdp_opencv_bgsubstract.pd b/help_pdp_opencv_bgsubstract.pd
new file mode 100644
index 0000000..435449b
--- /dev/null
+++ b/help_pdp_opencv_bgsubstract.pd
@@ -0,0 +1,13 @@
+#N canvas 0 0 521 599 10;
+#X msg 101 -138 open /dev/video0;
+#X obj 101 57 pdp_v4l2;
+#X msg 207 60 set;
+#X obj 101 99 pdp_opencv_bgsubstract;
+#X floatatom 273 102 5 0 0 0 - - -;
+#X obj 108 174 pdp_xv;
+#X text 317 103 threshold (default 13);
+#X connect 0 0 1 0;
+#X connect 1 0 3 0;
+#X connect 2 0 3 0;
+#X connect 3 0 5 0;
+#X connect 4 0 3 1;
diff --git a/help_pdp_opencv_contours_boundingrect.pd b/help_pdp_opencv_contours_boundingrect.pd
new file mode 100644
index 0000000..8e7f1ea
--- /dev/null
+++ b/help_pdp_opencv_contours_boundingrect.pd
@@ -0,0 +1,28 @@
+#N canvas 0 25 1247 665 10;
+#X obj 133 49 pdp_v4l2;
+#X msg 201 14 open /dev/video0;
+#X obj 133 290 pdp_xv;
+#X floatatom 355 325 5 0 0 0 - - -;
+#X floatatom 390 325 5 0 0 0 - - -;
+#X floatatom 427 325 5 0 0 0 - - -;
+#X floatatom 461 325 5 0 0 0 - - -;
+#X obj 352 296 unpack 0 0 0 0 0;
+#X obj 352 245 route 0 1 2 3 4;
+#X floatatom 242 163 5 0 0 0 - - -;
+#X floatatom 352 180 5 0 0 0 - - -;
+#X obj 133 213 pdp_opencv_contours_boundingrect;
+#X text 284 159 min area in pixels (default 1);
+#X text 399 179 max area in pixels (default 76800);
+#X text 505 325 Xorigin Yorigin Width Height;
+#X text 412 263 For each contour detected;
+#X connect 0 0 11 0;
+#X connect 1 0 0 0;
+#X connect 7 0 3 0;
+#X connect 7 1 4 0;
+#X connect 7 2 5 0;
+#X connect 7 3 6 0;
+#X connect 8 0 7 0;
+#X connect 9 0 11 1;
+#X connect 10 0 11 2;
+#X connect 11 0 2 0;
+#X connect 11 1 8 0;
diff --git a/help_pdp_opencv_contours_composition.pd b/help_pdp_opencv_contours_composition.pd
new file mode 100644
index 0000000..f8b33c3
--- /dev/null
+++ b/help_pdp_opencv_contours_composition.pd
@@ -0,0 +1,49 @@
+#N canvas 0 51 521 599 10;
+#X obj 101 158 pdp_xv;
+#X msg 101 -138 open /dev/video0;
+#X obj 101 -90 pdp_v4l2;
+#X text 310 99 threshold value;
+#X obj 373 365 pdp_opencv_contours;
+#X obj 200 256 pdp_xv;
+#X obj 375 397 pdp_xv;
+#X obj 334 165 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
+1;
+#X msg 243 165 mode \$1;
+#X text 353 165 switch open/close and erode/dilate modes;
+#X floatatom 363 212 5 0 0 0 - - -;
+#X floatatom 520 365 5 0 0 0 - - -;
+#X floatatom 271 101 5 0 0 0 - - -;
+#X obj 458 335 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X obj 204 210 pdp_opencv_morphology;
+#X obj 337 325 pdp_xv;
+#X obj 471 234 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X msg 380 234 mode \$1;
+#X text 490 234 switch open/close and erode/dilate modes;
+#X floatatom 500 281 5 0 0 0 - - -;
+#X obj 341 279 pdp_opencv_morphology;
+#X obj 22 81 pdp_xv;
+#X text 231 22 threshold value;
+#X msg 128 -17 set;
+#X obj 22 22 pdp_opencv_bgsubstract;
+#X floatatom 192 24 5 0 0 0 - - -;
+#X obj 101 99 pdp_opencv_threshold;
+#X connect 1 0 2 0;
+#X connect 2 0 24 0;
+#X connect 4 0 6 0;
+#X connect 7 0 8 0;
+#X connect 8 0 14 0;
+#X connect 12 0 26 2;
+#X connect 13 0 4 1;
+#X connect 14 0 5 0;
+#X connect 14 0 20 0;
+#X connect 16 0 17 0;
+#X connect 17 0 20 0;
+#X connect 20 0 15 0;
+#X connect 23 0 24 0;
+#X connect 24 0 21 0;
+#X connect 24 0 26 0;
+#X connect 25 0 24 1;
+#X connect 26 0 0 0;
+#X connect 26 0 14 0;
diff --git a/help_pdp_opencv_contours_convexity.pd b/help_pdp_opencv_contours_convexity.pd
new file mode 100644
index 0000000..ed33908
--- /dev/null
+++ b/help_pdp_opencv_contours_convexity.pd
@@ -0,0 +1,92 @@
+#N canvas 0 25 1247 665 10;
+#X obj 143 68 pdp_v4l2;
+#X msg 211 33 open /dev/video0;
+#X obj 143 414 pdp_xv;
+#X floatatom -128 627 5 0 0 0 - - -;
+#X floatatom -93 627 5 0 0 0 - - -;
+#X floatatom -63 608 5 0 0 0 - - -;
+#X floatatom -29 608 5 0 0 0 - - -;
+#X obj 341 445 route 0 1 2 3 4;
+#X floatatom 207 311 5 0 0 0 - - -;
+#X floatatom 269 327 5 0 0 0 - - -;
+#X obj 143 350 pdp_opencv_contours_convexity;
+#X floatatom 308 120 5 0 0 0 - - -;
+#X msg 235 81 set;
+#X obj 143 116 pdp_opencv_bgsubstract;
+#X text 247 309 minarea (default 1);
+#X text 316 326 maxarea (dfault 76800);
+#X obj -94 563 unpack 0 0 0 0 0 0;
+#X floatatom 1 589 5 0 0 0 - - -;
+#X floatatom 35 589 5 0 0 0 - - -;
+#X text 451 446 For each convexity defect in our contour;
+#X text -55 628 Start point (X -Y);
+#X text 9 608 Depth point (X -Y);
+#X text 74 590 End point (X -Y);
+#X floatatom 180 627 5 0 0 0 - - -;
+#X floatatom 215 627 5 0 0 0 - - -;
+#X floatatom 245 608 5 0 0 0 - - -;
+#X floatatom 279 608 5 0 0 0 - - -;
+#X obj 214 563 unpack 0 0 0 0 0 0;
+#X floatatom 309 589 5 0 0 0 - - -;
+#X floatatom 343 589 5 0 0 0 - - -;
+#X text 253 628 Start point (X -Y);
+#X text 317 608 Depth point (X -Y);
+#X text 382 590 End point (X -Y);
+#X floatatom 498 634 5 0 0 0 - - -;
+#X floatatom 533 634 5 0 0 0 - - -;
+#X floatatom 563 615 5 0 0 0 - - -;
+#X floatatom 597 615 5 0 0 0 - - -;
+#X obj 532 570 unpack 0 0 0 0 0 0;
+#X floatatom 627 596 5 0 0 0 - - -;
+#X floatatom 661 596 5 0 0 0 - - -;
+#X text 571 635 Start point (X -Y);
+#X text 635 615 Depth point (X -Y);
+#X text 700 597 End point (X -Y);
+#X floatatom 806 634 5 0 0 0 - - -;
+#X floatatom 841 634 5 0 0 0 - - -;
+#X floatatom 871 615 5 0 0 0 - - -;
+#X floatatom 905 615 5 0 0 0 - - -;
+#X obj 840 570 unpack 0 0 0 0 0 0;
+#X floatatom 935 596 5 0 0 0 - - -;
+#X floatatom 969 596 5 0 0 0 - - -;
+#X text 879 635 Start point (X -Y);
+#X text 943 615 Depth point (X -Y);
+#X text 1008 597 End point (X -Y);
+#X floatatom 242 381 5 0 0 0 - - -;
+#X text 238 396 number convexity defects;
+#X connect 0 0 13 0;
+#X connect 1 0 0 0;
+#X connect 7 0 16 0;
+#X connect 7 1 27 0;
+#X connect 7 2 37 0;
+#X connect 7 3 47 0;
+#X connect 10 0 2 0;
+#X connect 10 1 53 0;
+#X connect 10 2 7 0;
+#X connect 11 0 13 1;
+#X connect 12 0 13 0;
+#X connect 13 0 10 0;
+#X connect 16 0 3 0;
+#X connect 16 1 4 0;
+#X connect 16 2 5 0;
+#X connect 16 3 6 0;
+#X connect 16 4 17 0;
+#X connect 16 5 18 0;
+#X connect 27 0 23 0;
+#X connect 27 1 24 0;
+#X connect 27 2 25 0;
+#X connect 27 3 26 0;
+#X connect 27 4 28 0;
+#X connect 27 5 29 0;
+#X connect 37 0 33 0;
+#X connect 37 1 34 0;
+#X connect 37 2 35 0;
+#X connect 37 3 36 0;
+#X connect 37 4 38 0;
+#X connect 37 5 39 0;
+#X connect 47 0 43 0;
+#X connect 47 1 44 0;
+#X connect 47 2 45 0;
+#X connect 47 3 46 0;
+#X connect 47 4 48 0;
+#X connect 47 5 49 0;
diff --git a/help_pdp_opencv_distrans.pd b/help_pdp_opencv_distrans.pd
new file mode 100644
index 0000000..f523ce2
--- /dev/null
+++ b/help_pdp_opencv_distrans.pd
@@ -0,0 +1,45 @@
+#N canvas 575 65 521 599 10;
+#X obj 101 158 pdp_xv;
+#X obj 101 -2 pdp_qt;
+#X obj 134 -66 metro 40;
+#X msg 134 -94 bang;
+#X msg 175 -94 stop;
+#X obj 101 -163 openpanel;
+#X msg 101 -138 open \$1;
+#X msg 101 -191 bang;
+#X msg 135 -39 loop \$1;
+#X obj 215 -39 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
+1;
+#X floatatom 276 106 5 0 0 0 - - -;
+#X obj 101 99 pdp_opencv_distrans;
+#X text 315 107 edge threshold;
+#X obj 215 -121 loadbang;
+#X text 170 -196 1 first load a video file;
+#X msg 253 23 type 3;
+#X msg 263 43 type 5;
+#X msg 273 62 type 0;
+#X msg 251 -2 voronoi \$1;
+#X obj 342 -2 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X text 361 -2 switch Voronoi diagram mode on/off;
+#X text 310 24 use 3x3 mask;
+#X text 320 43 use 5x5 mask;
+#X text 326 62 use precise distance transform;
+#X connect 1 0 11 0;
+#X connect 2 0 1 0;
+#X connect 3 0 2 0;
+#X connect 4 0 2 0;
+#X connect 5 0 6 0;
+#X connect 6 0 1 0;
+#X connect 7 0 5 0;
+#X connect 8 0 1 0;
+#X connect 9 0 8 0;
+#X connect 10 0 11 1;
+#X connect 11 0 0 0;
+#X connect 13 0 9 0;
+#X connect 13 0 3 0;
+#X connect 15 0 11 0;
+#X connect 16 0 11 0;
+#X connect 17 0 11 0;
+#X connect 18 0 11 0;
+#X connect 19 0 18 0;
diff --git a/help_pdp_opencv_edge.pd b/help_pdp_opencv_edge.pd
new file mode 100644
index 0000000..0ee2618
--- /dev/null
+++ b/help_pdp_opencv_edge.pd
@@ -0,0 +1,30 @@
+#N canvas 0 0 521 599 10;
+#X obj 101 158 pdp_xv;
+#X obj 101 57 pdp_qt;
+#X obj 134 -7 metro 40;
+#X msg 134 -35 bang;
+#X msg 175 -35 stop;
+#X obj 101 -163 openpanel;
+#X msg 101 -138 open \$1;
+#X msg 101 -191 bang;
+#X msg 135 20 loop \$1;
+#X obj 215 20 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X floatatom 233 98 5 0 0 0 - - -;
+#X obj 101 99 pdp_opencv_edge;
+#X text 272 99 edge threshold;
+#X obj 215 -62 loadbang;
+#X text 170 -196 1 first load a video file;
+#X connect 1 0 11 0;
+#X connect 2 0 1 0;
+#X connect 3 0 2 0;
+#X connect 4 0 2 0;
+#X connect 5 0 6 0;
+#X connect 6 0 1 0;
+#X connect 7 0 5 0;
+#X connect 8 0 1 0;
+#X connect 9 0 8 0;
+#X connect 10 0 11 1;
+#X connect 11 0 0 0;
+#X connect 13 0 9 0;
+#X connect 13 0 3 0;
diff --git a/help_pdp_opencv_floodfill.pd b/help_pdp_opencv_floodfill.pd
new file mode 100644
index 0000000..f8dc2db
--- /dev/null
+++ b/help_pdp_opencv_floodfill.pd
@@ -0,0 +1,20 @@
+#N canvas 0 0 521 599 10;
+#X obj 101 158 pdp_xv;
+#X msg 101 -138 open /dev/video0;
+#X obj 101 57 pdp_v4l2;
+#X msg 207 60 set;
+#X floatatom 273 102 5 0 0 0 - - -;
+#X text 317 103 number of frames to take as average bg;
+#X obj 191 224 pdp_xv;
+#X floatatom 363 168 5 0 0 0 - - -;
+#X text 407 169 number of frames to take as average bg;
+#X obj 191 165 pdp_opencv_floodfill;
+#X obj 101 99 pdp_opencv_threshold;
+#X connect 1 0 2 0;
+#X connect 2 0 10 0;
+#X connect 3 0 10 0;
+#X connect 4 0 10 2;
+#X connect 7 0 9 1;
+#X connect 9 0 6 0;
+#X connect 10 0 0 0;
+#X connect 10 0 9 0;
diff --git a/help_pdp_opencv_haarcascade.pd b/help_pdp_opencv_haarcascade.pd
new file mode 100644
index 0000000..9016e5a
--- /dev/null
+++ b/help_pdp_opencv_haarcascade.pd
@@ -0,0 +1,61 @@
+#N canvas 0 25 1247 665 10;
+#X obj 157 -1 pdp_v4l2;
+#X msg 225 -36 open /dev/video0;
+#X obj 146 261 pdp_xv;
+#X floatatom 281 325 5 0 0 0 - - -;
+#X floatatom 343 324 5 0 0 0 - - -;
+#X floatatom 396 324 5 0 0 0 - - -;
+#X obj 278 245 route 0 1 2 3 4;
+#X obj 241 57 openpanel;
+#X msg 181 58 load \$1;
+#X text 331 59 Load a trained cascade classifier from XML file;
+#X obj 311 57 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1
+-1;
+#X floatatom 319 114 5 0 0 0 - - -;
+#X floatatom 291 179 5 0 0 0 - - -;
+#X msg 198 143 mode \$1;
+#X obj 259 143 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X msg 200 178 min_size \$1;
+#X msg 196 111 min_neighbors \$1;
+#X text 358 113 Minimum number (minus 1) of neighbor rectangles that
+makes up an object (default 2);
+#X text 331 179 Minimum window size (default 30);
+#X msg 195 84 scale_factor \$1;
+#X floatatom 313 84 5 0 0 0 - - -;
+#X text 357 83 The factor by which the search window is scaled between
+the subsequent scans (default 1.1);
+#X obj 154 208 pdp_opencv_haarcascade;
+#X text 284 145 Mode of operation. Currently the only flag that may
+be specified is CV_HAAR_DO_CANNY_PRUNING == 0;
+#X text 338 263 For each object detected;
+#X text 280 341 Xcenter Ycenter Radio;
+#X obj 278 296 unpack 0 0 0;
+#X floatatom 341 403 5 0 0 0 - - -;
+#X floatatom 403 402 5 0 0 0 - - -;
+#X floatatom 456 402 5 0 0 0 - - -;
+#X text 340 419 Xcenter Ycenter Radio;
+#X obj 338 374 unpack 0 0 0;
+#X connect 0 0 22 0;
+#X connect 1 0 0 0;
+#X connect 6 0 26 0;
+#X connect 6 1 31 0;
+#X connect 7 0 8 0;
+#X connect 8 0 22 0;
+#X connect 10 0 7 0;
+#X connect 11 0 16 0;
+#X connect 12 0 15 0;
+#X connect 13 0 22 0;
+#X connect 14 0 13 0;
+#X connect 15 0 22 0;
+#X connect 16 0 22 0;
+#X connect 19 0 22 0;
+#X connect 20 0 19 0;
+#X connect 22 0 2 0;
+#X connect 22 1 6 0;
+#X connect 26 0 3 0;
+#X connect 26 1 4 0;
+#X connect 26 2 5 0;
+#X connect 31 0 27 0;
+#X connect 31 1 28 0;
+#X connect 31 2 29 0;
diff --git a/help_pdp_opencv_laplace.pd b/help_pdp_opencv_laplace.pd
new file mode 100644
index 0000000..b23e464
--- /dev/null
+++ b/help_pdp_opencv_laplace.pd
@@ -0,0 +1,30 @@
+#N canvas 626 25 521 599 10;
+#X obj 101 158 pdp_xv;
+#X obj 101 57 pdp_qt;
+#X obj 134 -7 metro 40;
+#X msg 134 -35 bang;
+#X msg 175 -35 stop;
+#X obj 101 -163 openpanel;
+#X msg 101 -138 open \$1;
+#X msg 101 -191 bang;
+#X msg 135 20 loop \$1;
+#X obj 215 20 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
+1;
+#X floatatom 248 101 5 0 0 0 - - -;
+#X obj 215 -62 loadbang;
+#X text 170 -196 1 first load a video file;
+#X obj 101 99 pdp_opencv_laplace;
+#X text 287 102 aperture size (1 \, 3 \, 5 \, 7);
+#X connect 1 0 13 0;
+#X connect 2 0 1 0;
+#X connect 3 0 2 0;
+#X connect 4 0 2 0;
+#X connect 5 0 6 0;
+#X connect 6 0 1 0;
+#X connect 7 0 5 0;
+#X connect 8 0 1 0;
+#X connect 9 0 8 0;
+#X connect 10 0 13 1;
+#X connect 11 0 9 0;
+#X connect 11 0 3 0;
+#X connect 13 0 0 0;
diff --git a/help_pdp_opencv_lk.pd b/help_pdp_opencv_lk.pd
new file mode 100644
index 0000000..f3a66d8
--- /dev/null
+++ b/help_pdp_opencv_lk.pd
@@ -0,0 +1,18 @@
+#N canvas 0 0 521 599 10;
+#X obj 101 158 pdp_xv;
+#X floatatom 256 100 5 0 0 0 - - -;
+#X msg 101 -138 open /dev/video0;
+#X obj 101 57 pdp_v4l2;
+#X text 295 101 threshold value;
+#X msg 186 61 mode \$1;
+#X floatatom 255 61 5 0 0 0 - - -;
+#X text 301 60 mode \, 0 \, 1 \, 2 \, 3 \, 4;
+#X floatatom 257 80 5 0 0 0 - - -;
+#X text 298 80 Max value used in some modes;
+#X obj 101 99 pdp_opencv_lk;
+#X connect 2 0 3 0;
+#X connect 3 0 10 0;
+#X connect 5 0 10 0;
+#X connect 6 0 5 0;
+#X connect 8 0 10 1;
+#X connect 10 0 0 0;
diff --git a/help_pdp_opencv_morphology.pd b/help_pdp_opencv_morphology.pd
new file mode 100644
index 0000000..2bbe7bb
--- /dev/null
+++ b/help_pdp_opencv_morphology.pd
@@ -0,0 +1,45 @@
+#N canvas 575 65 668 599 10;
+#X obj 101 158 pdp_xv;
+#X obj 101 -2 pdp_qt;
+#X obj 134 -66 metro 40;
+#X msg 134 -94 bang;
+#X msg 175 -94 stop;
+#X obj 101 -163 openpanel;
+#X msg 101 -138 open \$1;
+#X msg 101 -191 bang;
+#X msg 135 -39 loop \$1;
+#X obj 215 -39 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
+1;
+#X floatatom 276 106 5 0 0 0 - - -;
+#X obj 215 -121 loadbang;
+#X text 170 -196 1 first load a video file;
+#X obj 342 -2 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
+1;
+#X msg 263 43 shape 2;
+#X msg 253 23 shape 1;
+#X msg 273 62 shape 3;
+#X msg 251 -2 mode \$1;
+#X text 310 24 use rectangle structuring element;
+#X text 328 59 use cross-shaped structuring element;
+#X text 322 41 use elliptic structuring element;
+#X obj 101 99 pdp_opencv_morphology;
+#X text 361 -2 switch open/close and erode/dilate modes;
+#X text 315 107 number of iterations -10/+10 (be carefull \; );
+#X connect 1 0 21 0;
+#X connect 2 0 1 0;
+#X connect 3 0 2 0;
+#X connect 4 0 2 0;
+#X connect 5 0 6 0;
+#X connect 6 0 1 0;
+#X connect 7 0 5 0;
+#X connect 8 0 1 0;
+#X connect 9 0 8 0;
+#X connect 10 0 21 1;
+#X connect 11 0 9 0;
+#X connect 11 0 3 0;
+#X connect 13 0 17 0;
+#X connect 14 0 21 0;
+#X connect 15 0 21 0;
+#X connect 16 0 21 0;
+#X connect 17 0 21 0;
+#X connect 21 0 0 0;
diff --git a/help_pdp_opencv_motempl.pd b/help_pdp_opencv_motempl.pd
new file mode 100644
index 0000000..bcbc2bb
--- /dev/null
+++ b/help_pdp_opencv_motempl.pd
@@ -0,0 +1,115 @@
+#N canvas 0 25 1247 665 10;
+#X floatatom 485 286 5 0 0 0 - - -;
+#X floatatom 546 248 5 0 0 0 - - -;
+#X text 525 288 Threshold value. (default 30);
+#X text 588 247 Maximal duration of motion track in seconds. (default
+1);
+#X text 550 266 xxx;
+#X obj 492 373 route -1 0 1 2 3 4;
+#X floatatom 495 453 5 0 0 0 - - -;
+#X floatatom 530 453 5 0 0 0 - - -;
+#X floatatom 567 453 5 0 0 0 - - -;
+#X floatatom 601 453 5 0 0 0 - - -;
+#X floatatom 524 502 5 0 0 0 - - -;
+#X floatatom 559 502 5 0 0 0 - - -;
+#X floatatom 596 502 5 0 0 0 - - -;
+#X floatatom 630 502 5 0 0 0 - - -;
+#X floatatom 568 558 5 0 0 0 - - -;
+#X floatatom 603 558 5 0 0 0 - - -;
+#X floatatom 640 558 5 0 0 0 - - -;
+#X floatatom 674 558 5 0 0 0 - - -;
+#X obj 492 424 unpack 0 0 0 0 0;
+#X obj 521 473 unpack 0 0 0 0 0;
+#X obj 565 529 unpack 0 0 0 0 0;
+#X floatatom 638 452 5 0 0 0 - - -;
+#X floatatom 668 502 5 0 0 0 - - -;
+#X floatatom 712 558 5 0 0 0 - - -;
+#X text 552 391 For each motion component component;
+#X text 614 424 (-1) means the whole image;
+#X text 689 450 Xcenter Ycenter Width Height Angle;
+#X text 710 501 Xcenter Ycenter Width Height Angle;
+#X text 757 557 Xcenter Ycenter Width Height Angle;
+#X obj 360 329 pdp_opencv_motempl;
+#X obj 364 374 pdp_xv;
+#X msg 430 246 mhi_duration \$1;
+#X obj 59 391 pdp_qt;
+#X obj 56 41 metro 40;
+#X msg 56 13 bang;
+#X msg 97 13 stop;
+#X msg 15 13 bang;
+#X obj 140 41 openpanel;
+#X msg 140 66 open \$1;
+#X msg 140 13 bang;
+#X msg 140 92 close;
+#X floatatom 140 120 5 0 0 0 - - -;
+#X floatatom 140 146 5 0 0 0 - - -;
+#X msg 140 197 loop \$1;
+#X obj 203 182 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
+1;
+#X msg 142 341 dump array 0;
+#X msg 142 291 stop;
+#X msg 141 222 autoplay 1;
+#X msg 142 267 play;
+#X msg 142 315 cont;
+#X floatatom 586 160 5 0 0 0 - - -;
+#X msg 431 158 max_time_delta \$1;
+#X floatatom 586 183 5 0 0 0 - - -;
+#X msg 431 181 min_time_delta \$1;
+#X floatatom 585 212 5 0 0 0 - - -;
+#X msg 430 210 frame_buffer_num \$1;
+#X floatatom 512 304 5 0 0 0 - - -;
+#X floatatom 523 323 5 0 0 0 - - -;
+#X text 563 325 Max size of the motion component (default 500);
+#X text 553 304 Min size of the motion component (default 50);
+#X text 627 211 Number of frames in the buffer. (default 4);
+#X text 628 159 Max time delta in seconds. (default 0.5);
+#X text 628 182 Min time delta in seconds. (default 0.05);
+#X connect 0 0 29 1;
+#X connect 1 0 31 0;
+#X connect 5 0 18 0;
+#X connect 5 1 19 0;
+#X connect 5 2 20 0;
+#X connect 18 0 6 0;
+#X connect 18 1 7 0;
+#X connect 18 2 8 0;
+#X connect 18 3 9 0;
+#X connect 18 4 21 0;
+#X connect 19 0 10 0;
+#X connect 19 1 11 0;
+#X connect 19 2 12 0;
+#X connect 19 3 13 0;
+#X connect 19 4 22 0;
+#X connect 20 0 14 0;
+#X connect 20 1 15 0;
+#X connect 20 2 16 0;
+#X connect 20 3 17 0;
+#X connect 20 4 23 0;
+#X connect 29 0 30 0;
+#X connect 29 1 5 0;
+#X connect 31 0 29 0;
+#X connect 32 0 29 0;
+#X connect 33 0 32 0;
+#X connect 34 0 33 0;
+#X connect 35 0 33 0;
+#X connect 36 0 32 0;
+#X connect 37 0 38 0;
+#X connect 38 0 32 0;
+#X connect 39 0 37 0;
+#X connect 40 0 32 0;
+#X connect 41 0 32 0;
+#X connect 42 0 32 1;
+#X connect 43 0 32 0;
+#X connect 44 0 43 0;
+#X connect 45 0 32 0;
+#X connect 46 0 32 0;
+#X connect 47 0 32 0;
+#X connect 48 0 32 0;
+#X connect 49 0 32 0;
+#X connect 50 0 51 0;
+#X connect 51 0 29 0;
+#X connect 52 0 53 0;
+#X connect 53 0 29 0;
+#X connect 54 0 55 0;
+#X connect 55 0 29 0;
+#X connect 56 0 29 2;
+#X connect 57 0 29 3;
diff --git a/help_pdp_opencv_threshold.pd b/help_pdp_opencv_threshold.pd
new file mode 100644
index 0000000..0dfd360
--- /dev/null
+++ b/help_pdp_opencv_threshold.pd
@@ -0,0 +1,19 @@
+#N canvas 0 0 521 599 10;
+#X obj 101 158 pdp_xv;
+#X floatatom 256 100 5 0 0 0 - - -;
+#X msg 101 -138 open /dev/video0;
+#X obj 101 57 pdp_v4l2;
+#X obj 101 99 pdp_opencv_threshold;
+#X text 295 101 threshold value;
+#X msg 186 61 mode \$1;
+#X floatatom 255 61 5 0 0 0 - - -;
+#X text 301 60 mode \, 0 \, 1 \, 2 \, 3 \, 4;
+#X floatatom 257 80 5 0 0 0 - - -;
+#X text 298 80 Max value used in some modes;
+#X connect 1 0 4 2;
+#X connect 2 0 3 0;
+#X connect 3 0 4 0;
+#X connect 4 0 0 0;
+#X connect 6 0 4 0;
+#X connect 7 0 6 0;
+#X connect 9 0 4 1;
diff --git a/pdp_opencv.c b/pdp_opencv.c
new file mode 100644
index 0000000..2e0dd4c
--- /dev/null
+++ b/pdp_opencv.c
@@ -0,0 +1,81 @@
+/*
+ *   Pure Data Packet system implementation: setup code
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <m_pd.h>
+
+static int pdp_opencv_initialized = 0;
+
+/* all symbols are C style */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+void pdp_opencv_edge_setup(void);
+void pdp_opencv_threshold_setup(void);
+void pdp_opencv_bgsubstract_setup(void);
+void pdp_opencv_distrans_setup(void);
+void pdp_opencv_laplace_setup(void);
+void pdp_opencv_motempl_setup(void);
+void pdp_opencv_morphology_setup(void);
+void pdp_opencv_haarcascade_setup(void);
+void pdp_opencv_floodfill_setup(void);
+void pdp_opencv_contours_convexity_setup(void);
+void pdp_opencv_contours_boundingrect_setup(void);
+void pdp_opencv_lk_setup(void);
+
+
+/* library setup routine */
+void pdp_opencv_setup(void){
+    
+    if (pdp_opencv_initialized) return;
+
+    /* babble */
+#ifdef PDP_CV_VERSION	
+    post("PDP_opencv: pure data packet openCV wrapper version " PDP_CV_VERSION );
+#else
+    post ("PDP_opencv: pure data packet openCV wrapper");
+#endif
+
+
+    /* setup pdp_opencv system */
+    pdp_opencv_edge_setup();
+    pdp_opencv_threshold_setup();
+    pdp_opencv_bgsubstract_setup();
+    pdp_opencv_distrans_setup();
+    pdp_opencv_laplace_setup();
+    pdp_opencv_motempl_setup();
+    pdp_opencv_morphology_setup();
+    pdp_opencv_haarcascade_setup();
+    pdp_opencv_floodfill_setup();
+    pdp_opencv_contours_convexity_setup();
+    pdp_opencv_contours_boundingrect_setup();
+    pdp_opencv_lk_setup();
+
+
+    pdp_opencv_initialized++;
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_bgsubstract.c b/pdp_opencv_bgsubstract.c
new file mode 100644
index 0000000..406311b
--- /dev/null
+++ b/pdp_opencv_bgsubstract.c
@@ -0,0 +1,264 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#include "cvaux.h"
+#endif
+
+
+typedef struct pdp_opencv_bgsubstract_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+    int x_set; 
+    int x_threshold; 
+
+    IplImage *image, *prev_gray, *gray, *grayLow, *grayUp, *diff_8U;
+    
+} t_pdp_opencv_bgsubstract;
+
+static void pdp_opencv_bgsubstract_process_rgb(t_pdp_opencv_bgsubstract *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_bgsubstract :: resizing plugins");
+	
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    	cvReleaseImage(&x->grayLow);
+    	cvReleaseImage(&x->grayUp);
+    	cvReleaseImage(&x->prev_gray);
+    	cvReleaseImage(&x->diff_8U);
+    
+	//create the orig image with new size
+        x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    	// Create the output and temp images with new sizes
+    	x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    	x->grayLow = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    	x->grayUp = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+        x->prev_gray = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 1 );
+        x->diff_8U = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 1 );
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    // FEM UNA COPIA DEL PACKET A image->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+
+    cvCvtColor( x->image, x->gray, CV_BGR2GRAY );
+
+    if (x->x_set) {
+    	memcpy( x->prev_gray->imageData, x->gray->imageData, x->x_size );
+	x->x_set=0;
+    } 
+
+    cvSubS (x->prev_gray,cvScalar(x->x_threshold,x->x_threshold,x->x_threshold,x->x_threshold),x->grayLow,NULL);
+    cvAddS (x->prev_gray,cvScalar(x->x_threshold,x->x_threshold,x->x_threshold,x->x_threshold),x->grayUp,NULL);
+    cvInRange (x->gray, x->grayLow, x->grayUp, x->diff_8U);
+
+    cvNot (x->diff_8U,x->diff_8U);
+
+    cvCvtColor(x->diff_8U,x->image,CV_GRAY2BGR);
+  
+    memcpy( newdata, x->image->imageData, x->x_size*3 );
+ 
+    return;
+}
+
+static void pdp_opencv_bgsubstract_threshold(t_pdp_opencv_bgsubstract *x, t_floatarg f)
+{
+	if (f>=1) x->x_threshold=(int)f;
+}
+
+static void pdp_opencv_bgsubstract_set(t_pdp_opencv_bgsubstract *x)
+{
+	x->x_set=1;
+}
+
+static void pdp_opencv_bgsubstract_sendpacket(t_pdp_opencv_bgsubstract *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_bgsubstract_process(t_pdp_opencv_bgsubstract *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_bgsubstract_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_bgsubstract_process_rgb, pdp_opencv_bgsubstract_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_bgsubstract_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_bgsubstract_input_0(t_pdp_opencv_bgsubstract *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_bgsubstract_process(x);
+    }
+}
+
+static void pdp_opencv_bgsubstract_free(t_pdp_opencv_bgsubstract *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    	cvReleaseImage(&x->grayLow);
+    	cvReleaseImage(&x->grayUp);
+    	cvReleaseImage(&x->prev_gray);
+    	cvReleaseImage(&x->diff_8U);
+}
+
+t_class *pdp_opencv_bgsubstract_class;
+
+
+void *pdp_opencv_bgsubstract_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_bgsubstract *x = (t_pdp_opencv_bgsubstract *)pd_new(pdp_opencv_bgsubstract_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("threshold"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+    x->x_set = 1;
+    x->x_threshold = 13;
+
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    x->grayLow = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    x->grayUp = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    x->prev_gray = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 1 );
+    x->diff_8U = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 1 );
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_bgsubstract_setup(void)
+{
+
+    post( "		pdp_opencv_bgsubstract");
+    pdp_opencv_bgsubstract_class = class_new(gensym("pdp_opencv_bgsubstract"), (t_newmethod)pdp_opencv_bgsubstract_new,
+    	(t_method)pdp_opencv_bgsubstract_free, sizeof(t_pdp_opencv_bgsubstract), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_bgsubstract_class, (t_method)pdp_opencv_bgsubstract_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_bgsubstract_class, (t_method)pdp_opencv_bgsubstract_set, gensym("set"),  A_NULL );   
+    class_addmethod(pdp_opencv_bgsubstract_class, (t_method)pdp_opencv_bgsubstract_threshold, gensym("threshold"),  A_FLOAT, A_NULL );   
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_contours_boundingrect.c b/pdp_opencv_contours_boundingrect.c
new file mode 100644
index 0000000..7523153
--- /dev/null
+++ b/pdp_opencv_contours_boundingrect.c
@@ -0,0 +1,320 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <math.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_contours_boundingrect_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_dataout;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int minarea;
+    int maxarea;
+    IplImage *image, *gray, *cnt_img;
+    
+} t_pdp_opencv_contours_boundingrect;
+
+
+
+static void pdp_opencv_contours_boundingrect_process_rgb(t_pdp_opencv_contours_boundingrect *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_contours_boundingrect :: resizing plugins");
+	
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    	cvReleaseImage(&x->cnt_img);
+    
+	//create the orig image with new size
+        x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+    	// Create the output images with new sizes
+    	x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    	x->cnt_img = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 3);
+    
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    // FEM UNA COPIA DEL PACKET A image->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+    
+    // Convert to grayscale
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+
+    CvSeq* contours;
+    CvMemStorage* stor02;
+    stor02 = cvCreateMemStorage(0);
+
+    //TODO nous objectes ::: llegeixo el OpenCVRefenceManual i al capitol 11 Structural Analysis Reference
+    // m'en adono que
+    //de fet aquest objecte no s'ha de dir pdp_opencv_contours sino pdp_opencv_convexity
+    //el pdp_opencv_contours et donaria una llista de punts en els outles que serien els punts del contorn (poligonal o no)i
+    //i seria la base per a una serie de objectes basats en contorns
+    //el pdp_opencv_convexHull, el  mateix pdp_opencv_convexity
+    //depres nhi ha un altre que surtiria d'aqui :: pdp_opencv_MinAreaRect i el pdp_opencv_MinEnclosingCircle
+    //ContourBoundingRect
+    //
+
+    
+    // TODO afegir parametres
+    // Retrieval mode.
+    // CV_RETR_TREE || CV_RETR_CCOMP || CV_RETR_LIST || CV_RETR_EXTERNAL
+    // Approximation method.
+    // CV_CHAIN_APPROX_SIMPLE || CV_CHAIN_CODE || CV_CHAIN_APPROX_NONE || CV_CHAIN_APPROX_TC89_L1 || CV_CHAIN_APPROX_TC89_KCOS || CV_LINK_RUNS
+    cvFindContours( x->gray, stor02, &contours, sizeof(CvContour), CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0) );
+    // TODO afegir parametres
+    // aqui es fa una aproximacio del contorn per a que sigui mes polinomic i no tingui tants punts
+    // els ultims dos parametres han de ser variables
+    //           precision , recursive
+    if (contours) contours = cvApproxPoly( contours, sizeof(CvContour), stor02, CV_POLY_APPROX_DP, 3, 1 );
+
+    //TODO afegir parametre
+    //si volem veure la imatge original o un fons negre
+    cvCopy(x->image, x->cnt_img, NULL);
+    //cvZero( x->cnt_img );
+    
+
+    for( ; contours != 0; contours = contours->h_next )
+        {
+        int i = 0;                   // Indicator of cycles.
+        int count = contours->total; // This is number point in contour
+        CvRect rect;
+
+	rect = cvContourBoundingRect( contours, 1);
+	if ( ( (rect.width*rect.height) > x->minarea ) && ( (rect.width*rect.height) < x->maxarea ) ) {
+	    cvRectangle( x->cnt_img, cvPoint(rect.x,rect.y), cvPoint(rect.x+rect.width,rect.y+rect.height), CV_RGB(255,0,0), 2, 8 , 0 );
+
+    	    t_atom rlist[4];
+            SETFLOAT(&rlist[0], i);
+            SETFLOAT(&rlist[1], rect.x);
+            SETFLOAT(&rlist[2], rect.y);
+            SETFLOAT(&rlist[3], rect.width);
+            SETFLOAT(&rlist[4], rect.height);
+
+    	    outlet_list( x->x_dataout, 0, 5, rlist );
+	    i++;
+	}
+	
+        }
+
+    cvReleaseMemStorage( &stor02 );
+
+    //cvShowImage( "contours", x->cnt_img );
+    memcpy( newdata, x->cnt_img->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_contours_boundingrect_param(t_pdp_opencv_contours_boundingrect *x, t_floatarg f1, t_floatarg f2)
+{
+
+}
+
+static void pdp_opencv_contours_boundingrect_minarea(t_pdp_opencv_contours_boundingrect *x, t_floatarg f)
+{
+	x->minarea = (int)f;
+}
+
+static void pdp_opencv_contours_boundingrect_maxarea(t_pdp_opencv_contours_boundingrect *x, t_floatarg f)
+{
+	x->maxarea = (int)f;
+}
+
+static void pdp_opencv_contours_boundingrect_sendpacket(t_pdp_opencv_contours_boundingrect *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_contours_boundingrect_process(t_pdp_opencv_contours_boundingrect *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_contours_boundingrect_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_contours_boundingrect_process_rgb, pdp_opencv_contours_boundingrect_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_contours_boundingrect_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_contours_boundingrect_input_0(t_pdp_opencv_contours_boundingrect *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_contours_boundingrect_process(x);
+    }
+}
+
+static void pdp_opencv_contours_boundingrect_free(t_pdp_opencv_contours_boundingrect *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    	cvReleaseImage(&x->cnt_img);
+}
+
+t_class *pdp_opencv_contours_boundingrect_class;
+
+
+void *pdp_opencv_contours_boundingrect_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_contours_boundingrect *x = (t_pdp_opencv_contours_boundingrect *)pd_new(pdp_opencv_contours_boundingrect_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("minarea"));
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("maxarea"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_dataout = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->minarea   = 1;
+    x->maxarea   = 320*240;
+    
+
+
+
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    x->cnt_img = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 3);
+
+    //contours = 0;
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_contours_boundingrect_setup(void)
+{
+
+    post( "		pdp_opencv_contours_boundingrect");
+    pdp_opencv_contours_boundingrect_class = class_new(gensym("pdp_opencv_contours_boundingrect"), (t_newmethod)pdp_opencv_contours_boundingrect_new,
+    	(t_method)pdp_opencv_contours_boundingrect_free, sizeof(t_pdp_opencv_contours_boundingrect), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_contours_boundingrect_class, (t_method)pdp_opencv_contours_boundingrect_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_contours_boundingrect_class, (t_method)pdp_opencv_contours_boundingrect_minarea, gensym("minarea"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_contours_boundingrect_class, (t_method)pdp_opencv_contours_boundingrect_maxarea, gensym("maxarea"),  A_FLOAT, A_NULL );   
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_contours_convexity.c b/pdp_opencv_contours_convexity.c
new file mode 100644
index 0000000..f9ce1cb
--- /dev/null
+++ b/pdp_opencv_contours_convexity.c
@@ -0,0 +1,455 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <math.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+#define w 500
+
+
+typedef struct pdp_opencv_contours_convexity_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_nomdef;
+    t_outlet *x_dataout;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int levels;
+    int area;
+    int minarea;
+    int maxarea;
+    int selected;
+    IplImage *image, *gray;
+
+} t_pdp_opencv_contours_convexity;
+
+static void pdp_opencv_contours_convexity_process_rgb(t_pdp_opencv_contours_convexity *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_contours_convexity :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    
+	//create the orig image with new size
+        x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+    	// Create the output images with new sizes
+    	x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    // FEM UNA COPIA DEL PACKET A image->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+    
+    // Convert to grayscale
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+
+    CvSeq* seqhull;
+    CvSeq* defects;
+    CvSeq* contours;
+    int* hull;
+    int hullsize;
+    CvPoint* PointArray;
+    CvConvexityDefect* defectArray;
+    CvMemStorage* stor02;
+    CvMemStorage* stor03;
+    stor02 = cvCreateMemStorage(0);
+    stor03 = cvCreateMemStorage(0);
+
+    //TODO nous objectes ::: llegeixo el OpenCVRefenceManual i al capitol 11 Structural Analysis Reference
+    // m'en adono que
+    //de fet aquest objecte no s'ha de dir pdp_opencv_contours_convexity sino pdp_opencv_convexity
+    //el pdp_opencv_contours_convexity et donaria una llista de punts en els outles que serien els punts del contorn (poligonal o no)i
+    //i seria la base per a una serie de objectes basats en contorns
+    //el pdp_opencv_convexHull, el  mateix pdp_opencv_convexity
+    //depres nhi ha un altre que surtiria d'aqui :: pdp_opencv_MinAreaRect i el pdp_opencv_MinEnclosingCircle
+    //ContourBoundingRect
+    //
+
+    
+    // TODO afegir parametres
+    // Retrieval mode.
+    // CV_RETR_TREE || CV_RETR_CCOMP || CV_RETR_LIST || CV_RETR_EXTERNAL
+    // Approximation method.
+    // CV_CHAIN_APPROX_SIMPLE || CV_CHAIN_CODE || CV_CHAIN_APPROX_NONE || CV_CHAIN_APPROX_TC89_L1 || CV_CHAIN_APPROX_TC89_KCOS || CV_LINK_RUNS
+    cvFindContours( x->gray, stor02, &contours, sizeof(CvContour), CV_RETR_EXTERNAL, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0) );
+    // TODO afegir parametres
+    // aqui es fa una aproximacio del contorn per a que sigui mes polinomic i no tingui tants punts
+    // els ultims dos parametres han de ser variables
+    //           precision , recursive
+    if (contours) contours = cvApproxPoly( contours, sizeof(CvContour), stor02, CV_POLY_APPROX_DP, 3, 1 );
+
+    int i = 0; 
+    
+    //busquem el contorn mes gran
+    x->area = 0;
+    CvSeq* first_contour;
+    first_contour = contours;
+    for( ; contours != 0; contours = contours->h_next )
+        {
+        CvRect rect;
+	int count = contours->total; 
+	rect = cvContourBoundingRect(contours, 1);
+	if  ( (rect.width*rect.height) > x->area ) 
+		{
+		x->selected = i;
+		x->area = rect.width*rect.height;
+		}
+	i++;
+	}
+
+    //cvSeqSort(contours, sort_contour, NULL);
+    contours = first_contour;
+	
+    int k = 0;
+    for( ; contours != 0; contours = contours->h_next )
+        {
+        int i;                   // Indicator of cycles.
+        int count = contours->total; // This is number point in contour
+        CvPoint center;
+        CvSize size;
+        CvRect rect;
+
+	rect = cvContourBoundingRect( contours, 1);
+	if ( (k==x->selected) ) {
+        
+        
+    //fprintf(stderr,"malloc\n");
+        // Alloc memory for contour point set.    
+        PointArray = malloc( count*sizeof(CvPoint) );
+                
+        // Alloc memory for indices of convex hull vertices.
+        hull = malloc(sizeof(int)*count);
+        
+        // Get contour point set.
+    //fprintf(stderr,"cvCvtSeqToArray\n");
+        cvCvtSeqToArray(contours, PointArray, CV_WHOLE_SEQ);
+        
+                
+        // Find convex hull for curent contour.
+    //fprintf(stderr,"cvConvexHull\n");
+        cvConvexHull( PointArray,
+                      count,
+                      NULL,
+                      CV_COUNTER_CLOCKWISE,
+                      hull,
+                      &hullsize);
+        
+        // Find convex hull for current contour.
+        // This required for cvConvexityDefects().
+    //fprintf(stderr,"cvConvexHull2\n");
+        seqhull = cvConvexHull2( contours,0,
+                             CV_COUNTER_CLOCKWISE,
+                             0);
+        
+        // This required for cvConvexityDefects().
+        // Otherwise cvConvexityDefects() falled.
+        if( hullsize < 4 )
+            continue;
+         
+        // Find defects of convexity of current contours.                        
+    //fprintf(stderr,"cvConvexityDefects\n");
+        defects = cvConvexityDefects( contours,
+                            seqhull,
+                            stor03);
+        int j=0;
+        // This cycle marks all defects of convexity of current contours.
+        for(;defects;defects = defects->h_next)
+        {
+            int nomdef = defects->total; // defect amount
+    	    outlet_float( x->x_nomdef, nomdef );
+            
+            if(nomdef == 0)
+                continue;
+             
+            // Alloc memory for defect set.   
+    //fprintf(stderr,"malloc\n");
+            defectArray = malloc(sizeof(CvConvexityDefect)*nomdef);
+            
+            // Get defect set.
+    //fprintf(stderr,"cvCvtSeqToArray\n");
+            cvCvtSeqToArray(defects,defectArray, CV_WHOLE_SEQ);
+            
+
+            // Draw marks for all defects.
+            for(i=0; i<nomdef; i++)
+            {
+                cvLine(x->image, *(defectArray[i].start), *(defectArray[i].depth_point),CV_RGB(0,0,255),1, CV_AA, 0 );
+                cvCircle( x->image, *(defectArray[i].depth_point), 5, CV_RGB(0,255,0), -1, 8,0);
+                cvCircle( x->image, *(defectArray[i].start), 5, CV_RGB(0,255,0), -1, 8,0);
+                cvLine(x->image, *(defectArray[i].depth_point), *(defectArray[i].end),CV_RGB(0,0,255),1, CV_AA, 0 );
+    	    t_atom rlist[7];
+            SETFLOAT(&rlist[0], i);
+            SETFLOAT(&rlist[1], defectArray[i].start->x);
+            SETFLOAT(&rlist[2], defectArray[i].start->y);
+            SETFLOAT(&rlist[3], defectArray[i].depth_point->x);
+            SETFLOAT(&rlist[4], defectArray[i].depth_point->y);
+            SETFLOAT(&rlist[5], defectArray[i].end->x);
+            SETFLOAT(&rlist[6], defectArray[i].end->y);
+    	    outlet_list( x->x_dataout, 0, 7, rlist );
+            }
+
+	    j++;
+             
+            // Free memory.       
+            free(defectArray);
+        }
+        
+        // Draw current contour.
+        //cvDrawContours(x->cnt_img,contours,CV_RGB(255,255,255),CV_RGB(255,255,255),0,1, 8);
+        cvDrawContours( x->image, contours, CV_RGB(255,0,0), CV_RGB(0,255,0), x->levels, 2, CV_AA, cvPoint(0,0)  );
+        
+        // Draw convex hull for current contour.        
+        for(i=0; i<hullsize-1; i++)
+        {
+            cvLine(x->image, PointArray[hull[i]], 
+                            PointArray[hull[i+1]],CV_RGB(255,255,255),1, CV_AA, 0 );
+        }
+        cvLine(x->image, PointArray[hull[hullsize-1]],
+                             PointArray[hull[0]],CV_RGB(255,255,255),1, CV_AA, 0 );
+        
+          
+        // Free memory.          
+        free(PointArray);
+        free(hull);
+            /* replace CV_FILLED with 1 to see the outlines */
+            //cvDrawContours( x->cnt_img, contours, CV_RGB(255,0,0), CV_RGB(0,255,0), x->levels, 3, CV_AA, cvPoint(0,0)  );
+	    //cvConvexityDefects( contours, cvConvexHull2( contours, 0, CV_CLOCKWISE, 0 ), stor022 );
+        }
+	    k++;
+        }
+
+    cvReleaseMemStorage( &stor03 );
+    cvReleaseMemStorage( &stor02 );
+    //if (defects) cvClearSeq(defects);
+    //if (seqhull) cvClearSeq(seqhull);
+
+
+    memcpy( newdata, x->image->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_contours_convexity_param(t_pdp_opencv_contours_convexity *x, t_floatarg f1, t_floatarg f2)
+{
+
+}
+
+static void pdp_opencv_contours_convexity_minarea(t_pdp_opencv_contours_convexity *x, t_floatarg f)
+{
+	if (f>0) x->minarea = (int)f;
+}
+
+static void pdp_opencv_contours_convexity_maxarea(t_pdp_opencv_contours_convexity *x, t_floatarg f)
+{
+	if (f>0) x->maxarea = (int)f;
+}
+
+static void pdp_opencv_contours_convexity_levels(t_pdp_opencv_contours_convexity *x, t_floatarg f)
+{
+	//x->levels = (int)f;
+}
+
+static void pdp_opencv_contours_convexity_sendpacket(t_pdp_opencv_contours_convexity *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_contours_convexity_process(t_pdp_opencv_contours_convexity *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_contours_convexity_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_contours_convexity_process_rgb, pdp_opencv_contours_convexity_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_contours_convexity_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_contours_convexity_input_0(t_pdp_opencv_contours_convexity *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_contours_convexity_process(x);
+    }
+}
+
+static void pdp_opencv_contours_convexity_free(t_pdp_opencv_contours_convexity *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+}
+
+t_class *pdp_opencv_contours_convexity_class;
+
+
+void *pdp_opencv_contours_convexity_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_contours_convexity *x = (t_pdp_opencv_contours_convexity *)pd_new(pdp_opencv_contours_convexity_class);
+    //inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("minarea"));
+    //inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("maxarea"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_nomdef  = outlet_new(&x->x_obj, &s_float); 
+    x->x_dataout = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    //load the plugins
+    x->x_infosok = 0;
+    //cv_loadplugins(x, FF_PLUGIN_DIR);
+
+    //pdp_opencv_contours_convexity_plugin(x, f);
+    x->levels      = 1;
+    x->area   = 1;
+    x->minarea   = 1;
+    x->maxarea   = 76800;
+    x->selected  = 0;
+    
+
+
+
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+
+    //contours = 0;
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_contours_convexity_setup(void)
+{
+
+    post( "		pdp_opencv_contours_convexity");
+    pdp_opencv_contours_convexity_class = class_new(gensym("pdp_opencv_contours_convexity"), (t_newmethod)pdp_opencv_contours_convexity_new,
+    	(t_method)pdp_opencv_contours_convexity_free, sizeof(t_pdp_opencv_contours_convexity), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_contours_convexity_class, (t_method)pdp_opencv_contours_convexity_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    //class_addmethod(pdp_opencv_contours_convexity_class, (t_method)pdp_opencv_contours_convexity_levels, gensym("levels"),  A_FLOAT, A_NULL );   
+    //class_addmethod(pdp_opencv_contours_convexity_class, (t_method)pdp_opencv_contours_convexity_minarea, gensym("minarea"),  A_FLOAT, A_NULL );   
+    //class_addmethod(pdp_opencv_contours_convexity_class, (t_method)pdp_opencv_contours_convexity_maxarea, gensym("maxarea"),  A_FLOAT, A_NULL );   
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_distrans.c b/pdp_opencv_distrans.c
new file mode 100644
index 0000000..64adc2b
--- /dev/null
+++ b/pdp_opencv_distrans.c
@@ -0,0 +1,362 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_distrans_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int edge_thresh;
+    int build_voronoi;
+    int mask_size;
+
+    // The output and temporary images
+    IplImage* dist;
+    IplImage* dist8u1;
+    IplImage* dist8u2;
+    IplImage* dist8u;
+    IplImage* dist32s;
+
+    IplImage* image;
+    IplImage* gray;
+    IplImage* edge;
+    IplImage* labels;
+
+    
+} t_pdp_opencv_distrans;
+
+
+
+static void pdp_opencv_distrans_process_rgb(t_pdp_opencv_distrans *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+    static const uchar colors[][3] = 
+    {
+        {0,0,0},
+        {255,0,0},
+        {255,128,0},
+        {255,255,0},
+        {0,255,0},
+        {0,128,255},
+        {0,255,255},
+        {0,0,255},
+        {255,0,255}
+    };
+    
+    int msize = x->mask_size;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_distrans :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->image );
+    	cvReleaseImage( &x->gray );
+    	cvReleaseImage( &x->edge );
+    	cvReleaseImage( &x->dist );
+    	cvReleaseImage( &x->dist8u );
+    	cvReleaseImage( &x->dist8u1 );
+    	cvReleaseImage( &x->dist8u2 );
+    	cvReleaseImage( &x->dist32s );
+    	cvReleaseImage( &x->labels );
+    
+    	x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    	x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    	x->dist = cvCreateImage( cvGetSize(x->gray), IPL_DEPTH_32F, 1 );
+    	x->dist8u1 = cvCloneImage( x->gray );
+    	x->dist8u2 = cvCloneImage( x->gray );
+    	x->dist8u = cvCreateImage( cvGetSize(x->gray), IPL_DEPTH_8U, 3 );
+    	x->dist32s = cvCreateImage( cvGetSize(x->gray), IPL_DEPTH_32S, 1 );
+    	x->edge = cvCloneImage( x->gray );
+    	x->labels = cvCreateImage( cvGetSize(x->gray), IPL_DEPTH_32S, 1 );
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+    
+    cvThreshold( x->gray, x->edge, (float)x->edge_thresh, (float)x->edge_thresh, CV_THRESH_BINARY );
+
+    if( x->build_voronoi )
+        msize = CV_DIST_MASK_5;
+
+    cvDistTransform( x->edge, x->dist, CV_DIST_L2, msize, NULL, x->build_voronoi ? x->labels : NULL );
+
+    if( !x->build_voronoi )
+    {
+        // begin "painting" the distance transform result
+        cvConvertScale( x->dist, x->dist, 5000.0, 0 );
+        cvPow( x->dist, x->dist, 0.5 );
+    
+        cvConvertScale( x->dist, x->dist32s, 1.0, 0.5 );
+        cvAndS( x->dist32s, cvScalarAll(255), x->dist32s, 0 );
+        cvConvertScale( x->dist32s, x->dist8u1, 1, 0 );
+        cvConvertScale( x->dist32s, x->dist32s, -1, 0 );
+        cvAddS( x->dist32s, cvScalarAll(255), x->dist32s, 0 );
+        cvConvertScale( x->dist32s, x->dist8u2, 1, 0 );
+        cvMerge( x->dist8u1, x->dist8u2, x->dist8u2, 0, x->dist8u );
+        // end "painting" the distance transform result
+    }
+    else
+    {
+        int i, j;
+        for( i = 0; i < x->labels->height; i++ )
+        {
+            int* ll = (int*)(x->labels->imageData + i*x->labels->widthStep);
+            float* dd = (float*)(x->dist->imageData + i*x->dist->widthStep);
+            uchar* d = (uchar*)(x->dist8u->imageData + i*x->dist8u->widthStep);
+            for( j = 0; j < x->labels->width; j++ )
+            {
+                int idx = ll[j] == 0 || dd[j] == 0 ? 0 : (ll[j]-1)%8 + 1;
+                int b = cvRound(colors[idx][0]);
+                int g = cvRound(colors[idx][1]);
+                int r = cvRound(colors[idx][2]);
+                d[j*3] = (uchar)b;
+                d[j*3+1] = (uchar)g;
+                d[j*3+2] = (uchar)r;
+            }
+        }
+    }
+    
+    //cvShowImage( wndname, dist8u );
+
+    memcpy( newdata, x->dist8u->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_distrans_type(t_pdp_opencv_distrans *x, t_floatarg f)
+{
+        if( (int)f == 3 )
+            x->mask_size = CV_DIST_MASK_3;
+        else if( (int)f == 5 )
+            x->mask_size = CV_DIST_MASK_5;
+        else if( (int)f == 0 )
+            x->mask_size = CV_DIST_MASK_PRECISE;
+
+}
+
+static void pdp_opencv_distrans_voronoi(t_pdp_opencv_distrans *x, t_floatarg f)
+{
+    int v = (int)f;
+    if (v<0) v=0;
+    else if (v>1) v=1;
+
+    x->build_voronoi=(int)v;
+}
+
+static void pdp_opencv_distrans_thresh(t_pdp_opencv_distrans *x, t_floatarg f)
+{
+	x->edge_thresh = (int)f;
+}
+
+static void pdp_opencv_distrans_sendpacket(t_pdp_opencv_distrans *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_distrans_process(t_pdp_opencv_distrans *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_distrans_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_distrans_process_rgb, pdp_opencv_distrans_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_distrans_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_distrans_input_0(t_pdp_opencv_distrans *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_distrans_process(x);
+    }
+}
+
+static void pdp_opencv_distrans_free(t_pdp_opencv_distrans *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    cvReleaseImage( &x->image );
+    cvReleaseImage( &x->gray );
+    cvReleaseImage( &x->edge );
+    cvReleaseImage( &x->dist );
+    cvReleaseImage( &x->dist8u );
+    cvReleaseImage( &x->dist8u1 );
+    cvReleaseImage( &x->dist8u2 );
+    cvReleaseImage( &x->dist32s );
+    cvReleaseImage( &x->labels );
+}
+
+t_class *pdp_opencv_distrans_class;
+
+
+void *pdp_opencv_distrans_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_distrans *x = (t_pdp_opencv_distrans *)pd_new(pdp_opencv_distrans_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("edge_thresh"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    //load the plugins
+    x->x_infosok = 0;
+    //cv_loadplugins(x, FF_PLUGIN_DIR);
+
+    //pdp_opencv_distrans_plugin(x, f);
+    x->edge_thresh = 100;
+    x->build_voronoi = 0;
+    x->mask_size = CV_DIST_MASK_5;
+    
+
+
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+    x->dist = cvCreateImage( cvSize(x->x_width,x->x_height), IPL_DEPTH_32F, 1 );
+    x->dist8u1 = cvCloneImage( x->gray );
+    x->dist8u2 = cvCloneImage( x->gray );
+    x->dist8u = cvCreateImage( cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3 );
+    x->dist32s = cvCreateImage( cvSize(x->x_width,x->x_height), IPL_DEPTH_32S, 1 );
+    x->edge = cvCloneImage( x->gray );
+    x->labels = cvCreateImage( cvSize(x->x_width,x->x_height), IPL_DEPTH_32S, 1 );
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_distrans_setup(void)
+{
+
+    post( "		pdp_opencv_distrans");
+    pdp_opencv_distrans_class = class_new(gensym("pdp_opencv_distrans"), (t_newmethod)pdp_opencv_distrans_new,
+    	(t_method)pdp_opencv_distrans_free, sizeof(t_pdp_opencv_distrans), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_distrans_class, (t_method)pdp_opencv_distrans_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_distrans_class, (t_method)pdp_opencv_distrans_thresh, gensym("edge_thresh"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_distrans_class, (t_method)pdp_opencv_distrans_type, gensym("type"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_opencv_distrans_class, (t_method)pdp_opencv_distrans_voronoi, gensym("voronoi"),  A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_edge.c b/pdp_opencv_edge.c
new file mode 100644
index 0000000..d227381
--- /dev/null
+++ b/pdp_opencv_edge.c
@@ -0,0 +1,272 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_edge_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int edge_thresh;
+    IplImage *image, *cedge, *gray, *edge;
+
+    
+} t_pdp_opencv_edge;
+
+
+void panic(const char *panicstr, ...)
+{
+    post("pdp_opencv_edge :: PANIC!! %s\n", panicstr);
+    exit(1);
+}
+
+static void pdp_opencv_edge_process_rgb(t_pdp_opencv_edge *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_edge :: resizing buffers");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    	cvReleaseImage(&x->edge);
+    	cvReleaseImage(&x->cedge);
+    
+	//create the orig image with new size
+        x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+    	// Create the output images with new sizes
+    	x->cedge = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 3);
+
+    	x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    	x->edge = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    
+    // We make here a copy of the PDP packet in image->imageData ... 
+    // take a look on the IplImage data structure
+    // http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html 
+    memcpy( x->image->imageData, data, x->x_size*3 );
+    
+    // Convert to grayscale
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+  
+    cvSmooth( x->gray, x->edge, CV_BLUR, 3, 3, 0, 0 );
+    cvNot( x->gray, x->edge );
+
+    // Run the edge detector on grayscale
+    cvCanny(x->gray, x->edge, (float)x->edge_thresh, (float)x->edge_thresh*3, 3);
+  
+    cvZero( x->cedge );
+    
+    // copy edge points
+    cvCopy( x->image, x->cedge, x->edge );
+
+    //memory copy again, now from x->cedge->imageData to the new data pdp packet
+    memcpy( newdata, x->cedge->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_edge_thresh(t_pdp_opencv_edge *x, t_floatarg f)
+{
+	x->edge_thresh = (int)f;
+}
+
+static void pdp_opencv_edge_sendpacket(t_pdp_opencv_edge *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_edge_process(t_pdp_opencv_edge *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_edge_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_edge_process_rgb, pdp_opencv_edge_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_edge_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_edge_input_0(t_pdp_opencv_edge *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_edge_process(x);
+    }
+}
+
+static void pdp_opencv_edge_free(t_pdp_opencv_edge *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    	cvReleaseImage(&x->edge);
+    	cvReleaseImage(&x->cedge);
+}
+
+t_class *pdp_opencv_edge_class;
+
+
+void *pdp_opencv_edge_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_edge *x = (t_pdp_opencv_edge *)pd_new(pdp_opencv_edge_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("edge_thresh"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+    x->edge_thresh = 1;
+    
+
+
+
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+
+// Create the output image
+    x->cedge = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 3);
+
+    // Convert to grayscale
+    x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    x->edge = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_edge_setup(void)
+{
+
+    post( "		pdp_opencv_edge");
+    pdp_opencv_edge_class = class_new(gensym("pdp_opencv_edge"), (t_newmethod)pdp_opencv_edge_new,
+    	(t_method)pdp_opencv_edge_free, sizeof(t_pdp_opencv_edge), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_edge_class, (t_method)pdp_opencv_edge_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_edge_class, (t_method)pdp_opencv_edge_thresh, gensym("edge_thresh"),  A_FLOAT, A_NULL );   
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_floodfill.c b/pdp_opencv_floodfill.c
new file mode 100644
index 0000000..864e41c
--- /dev/null
+++ b/pdp_opencv_floodfill.c
@@ -0,0 +1,333 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_floodfill_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int up_diff;
+    int lo_diff;
+    int ffill_case;
+    int connectivity;
+    int is_color;
+    int is_mask;
+    int new_mask_val;
+
+    // The output and temporary images
+
+    IplImage* color_img0;
+    IplImage* mask;
+    IplImage* color_img;
+    IplImage* gray_img0;
+    IplImage* gray_img;
+    
+} t_pdp_opencv_floodfill;
+
+
+
+static void pdp_opencv_floodfill_process_rgb(t_pdp_opencv_floodfill *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+    int i;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_floodfill :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->color_img );
+    	cvReleaseImage( &x->color_img0 );
+    	cvReleaseImage( &x->mask );
+    	cvReleaseImage( &x->gray_img );
+    	cvReleaseImage( &x->gray_img0 );
+
+   
+	//Create cv_images 
+    	x->color_img0 = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    	x->color_img = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    	x->gray_img0 = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    	x->gray_img = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    	x->mask = cvCreateImage( cvSize(x->x_width + 2, x->x_height + 2), 8, 1 );
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->color_img->imageData, data, x->x_size*3 );
+
+    
+    cvCvtColor(x->color_img, x->gray_img, CV_BGR2GRAY);
+
+
+	int px = 0;       
+	int py = 0;       
+	int biggestNum=0,biggestLocX=0,biggestLocY=0;
+	int haveOne=0;
+	CvPixelPosition8u sil;
+	int stride = x->gray_img->widthStep;
+	unsigned char * pI = (unsigned char *)x->gray_img->imageData;
+	CV_INIT_PIXEL_POS(sil, pI, x->gray_img->widthStep, cvSize(x->gray_img->width, x->gray_img->height), 0, 0,IPL_ORIGIN_TL);
+	CvPoint xy;
+        CvPoint seed = cvPoint(px,py);
+        int lo = x->ffill_case == 0 ? 0 : x->lo_diff;
+        int up = x->ffill_case == 0 ? 0 : x->up_diff;
+        int flags = x->connectivity + (x->new_mask_val << 8) +
+                        (x->ffill_case == 1 ? CV_FLOODFILL_FIXED_RANGE : 0);
+        CvConnectedComp comp;
+	int min_area_size = 200;
+
+	for(py=0; py<x->gray_img->height; py++)
+	{
+		for(px=0; px<x->gray_img->width; px++)
+		{
+ 			if(*(sil.currline + sil.x) != 0) // check if used yet
+			{
+				xy.x = px;
+				xy.y = py;
+				cvFloodFill ( x->gray_img, xy, cvRealScalar(100), cvRealScalar(lo), cvRealScalar(up), &comp, flags, NULL );	
+				// if size is too small remove that region
+				// Also, keep only the biggest region!!!	
+				if( ((int)(comp.area)<min_area_size) || ((int)(comp.area)<biggestNum) )
+				{
+					// remove it
+					//cvFloodFill ( x->gray_img, xy, cvRealScalar(0), cvRealScalar(lo), cvRealScalar(up), &comp, flags, NULL );
+				} else { // for keeping just the largest
+					// remove previous max
+					if(haveOne)
+					{
+						xy.x = biggestLocX;
+						xy.y = biggestLocY;
+						//cvFloodFill ( x->gray_img, xy, cvRealScalar(0), cvRealScalar(lo), cvRealScalar(up), &comp, flags, NULL );
+					} else haveOne=1;
+					biggestNum=(int)(comp.area);
+					biggestLocX=px;
+					biggestLocY=py;
+				}
+			}
+		CV_MOVE_RIGHT_WRAP(sil, 1);
+		}
+	CV_MOVE_DOWN(sil, 1);
+	}
+	if(haveOne)
+	{
+		xy.x = biggestLocX;
+		xy.y = biggestLocY;
+		//cvFloodFill ( x->gray_img, xy, cvRealScalar(255), cvRealScalar(lo), cvRealScalar(up), &comp, flags, NULL );
+	}
+            
+                
+
+		//CvScalar brightness = cvRealScalar(255);
+                //cvFloodFill( x->color_img, seed, CV_RGB(255,255,255), CV_RGB(lo,lo,lo),
+                //             CV_RGB(up,up,up), &comp, flags, NULL );
+
+    cvCvtColor(x->gray_img, x->color_img, CV_GRAY2BGR);
+
+    memcpy( newdata, x->color_img->imageData, x->x_size*3 );
+    //printf("%g pixels were repainted\n", comp.area );
+    return;
+}
+
+
+static void pdp_opencv_floodfill_diff(t_pdp_opencv_floodfill *x, t_floatarg f)
+{
+	if ((f==1)||(f==3)||(f==5)||(f==7)) x->up_diff = (int)f;
+}
+
+static void pdp_opencv_floodfill_sendpacket(t_pdp_opencv_floodfill *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_floodfill_process(t_pdp_opencv_floodfill *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_floodfill_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_floodfill_process_rgb, pdp_opencv_floodfill_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_floodfill_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_floodfill_input_0(t_pdp_opencv_floodfill *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_floodfill_process(x);
+    }
+}
+
+static void pdp_opencv_floodfill_free(t_pdp_opencv_floodfill *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->color_img );
+    	cvReleaseImage( &x->color_img0 );
+    	cvReleaseImage( &x->mask );
+    	cvReleaseImage( &x->gray_img );
+    	cvReleaseImage( &x->gray_img0 );
+}
+
+t_class *pdp_opencv_floodfill_class;
+
+
+void *pdp_opencv_floodfill_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_floodfill *x = (t_pdp_opencv_floodfill *)pd_new(pdp_opencv_floodfill_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("lo_diff"));
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("up_diff"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->ffill_case = 1;
+    x->lo_diff = 20; 
+    x->up_diff = 20;
+    x->connectivity = 4;
+    x->is_color = 1;
+    x->is_mask = 0;
+    x->new_mask_val = 255;
+
+    x->color_img0 = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    x->color_img = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    x->mask = cvCreateImage( cvSize(x->x_width + 2, x->x_height + 2), 8, 1 );
+    x->gray_img0 = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    x->gray_img = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_floodfill_setup(void)
+{
+
+    post( "		pdp_opencv_floodfill");
+    pdp_opencv_floodfill_class = class_new(gensym("pdp_opencv_floodfill"), (t_newmethod)pdp_opencv_floodfill_new,
+    	(t_method)pdp_opencv_floodfill_free, sizeof(t_pdp_opencv_floodfill), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_floodfill_class, (t_method)pdp_opencv_floodfill_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    //class_addmethod(pdp_opencv_floodfill_class, (t_method)pdp_opencv_floodfill_up_diff, gensym("up_diff"),  A_FLOAT, A_NULL );   
+    //class_addmethod(pdp_opencv_floodfill_class, (t_method)pdp_opencv_floodfill_lo_diff, gensym("lo_diff"),  A_FLOAT, A_NULL );   
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_haarcascade.c b/pdp_opencv_haarcascade.c
new file mode 100644
index 0000000..c91e52e
--- /dev/null
+++ b/pdp_opencv_haarcascade.c
@@ -0,0 +1,356 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <math.h>
+#include <float.h>
+#include <limits.h>
+#include <time.h>
+#include <ctype.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+
+
+const char* default_cascade ="./haarcascade_frontalface_alt.xml";
+
+
+typedef struct pdp_opencv_haarcascade_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_dataout;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    float scale_factor;
+    int min_neighbors;
+    int mode;
+    int min_size;
+
+    IplImage *frame, *img;
+    CvMemStorage* storage;
+    CvHaarClassifierCascade* cascade;
+    
+} t_pdp_opencv_haarcascade;
+
+
+
+static void pdp_opencv_haarcascade_process_rgb(t_pdp_opencv_haarcascade *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_haarcascade :: resizing plugins");
+	
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->frame);
+    	cvReleaseImage(&x->img);
+    
+	//create the orig image with new size
+        x->frame = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+    	// Create the output images with new sizes
+    	x->img = cvCreateImage(cvSize(x->frame->width,x->frame->height), IPL_DEPTH_8U, 3);
+
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    //cv_processframe(x, x->x_plugin, newdata);
+    
+    // FEM UNA COPIA DEL PACKET A image->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->frame->imageData, data, x->x_size*3 );
+    
+            if( x->frame->origin == IPL_ORIGIN_TL )
+                cvCopy( x->frame, x->img, 0 );
+            else
+                cvFlip( x->frame, x->img, 0 );
+            
+    static CvScalar colors[] = 
+    {
+        {{0,0,255}},
+        {{0,128,255}},
+        {{0,255,255}},
+        {{0,255,0}},
+        {{255,128,0}},
+        {{255,255,0}},
+        {{255,0,0}},
+        {{255,0,255}}
+    };
+
+    double scale = 1.3;
+    IplImage* gray = cvCreateImage( cvSize(x->img->width,x->img->height), 8, 1 );
+    IplImage* small_img = cvCreateImage( cvSize( cvRound (x->img->width/scale),
+                         cvRound (x->img->height/scale)),
+                     8, 1 );
+    int i;
+
+    cvCvtColor( x->img, gray, CV_BGR2GRAY );
+    cvResize( gray, small_img, CV_INTER_LINEAR );
+    cvEqualizeHist( small_img, small_img );
+    cvClearMemStorage( x->storage );
+
+    if( x->cascade )
+    {
+        double t = (double)cvGetTickCount();
+        CvSeq* faces = cvHaarDetectObjects( small_img, x->cascade, x->storage,
+				x->scale_factor, x->min_neighbors, x->mode, cvSize(x->min_size, x->min_size) );
+        //t = (double)cvGetTickCount() - t;
+        //printf( "detection time = %gms\n", t/((double)cvGetTickFrequency()*1000.) );
+        for( i = 0; i < (faces ? faces->total : 0); i++ )
+        {
+            CvRect* r = (CvRect*)cvGetSeqElem( faces, i );
+            CvPoint center;
+            int radius;
+            center.x = cvRound((r->x + r->width*0.5)*scale);
+            center.y = cvRound((r->y + r->height*0.5)*scale);
+            radius = cvRound((r->width + r->height)*0.25*scale);
+            cvCircle( x->img, center, radius, colors[i%8], 3, 8, 0 );
+
+    	    t_atom rlist[4];
+            SETFLOAT(&rlist[0], i);
+            SETFLOAT(&rlist[1], center.x);
+            SETFLOAT(&rlist[2], center.y);
+            SETFLOAT(&rlist[3], radius);
+    	    outlet_list( x->x_dataout, 0, 4, rlist );
+        }
+    }
+
+    cvReleaseImage( &gray );
+    cvReleaseImage( &small_img );
+    cvClearMemStorage( x->storage );
+
+    memcpy( newdata, x->img->imageData, x->x_size*3 );
+
+
+ 
+    return;
+}
+
+static void pdp_opencv_haarcascade_param(t_pdp_opencv_haarcascade *x, t_floatarg f1, t_floatarg f2)
+{
+
+}
+
+static void pdp_opencv_haarcascade_scale_factor(t_pdp_opencv_haarcascade *x, t_floatarg f)
+{
+	if (f>1) x->scale_factor = f;
+}
+
+static void pdp_opencv_haarcascade_min_size(t_pdp_opencv_haarcascade *x, t_floatarg f)
+{
+	if (f>1) x->min_size = (int)f;
+}
+
+static void pdp_opencv_haarcascade_mode(t_pdp_opencv_haarcascade *x, t_floatarg f)
+{
+	if ((f==0)||(f==1)) x->mode = (int)f;
+}
+
+static void pdp_opencv_haarcascade_min_neighbors(t_pdp_opencv_haarcascade *x, t_floatarg f)
+{
+	if (f>=1) x->min_neighbors = (int)f;
+}
+
+static void pdp_opencv_haarcascade_load(t_pdp_opencv_haarcascade *x, t_symbol *filename)
+{
+    x->cascade = (CvHaarClassifierCascade*)cvLoad(  filename->s_name, 0, 0, 0 );
+    if( !x->cascade )
+    {
+        post( "ERROR: Could not load classifier cascade from %s\n", filename->s_name );
+    } else  post( "pdp_opencv_haarcascade: Loaded classifier cascade from %s\n", filename->s_name );
+}
+
+static void pdp_opencv_haarcascade_sendpacket(t_pdp_opencv_haarcascade *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_haarcascade_process(t_pdp_opencv_haarcascade *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_haarcascade_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_haarcascade_process_rgb, pdp_opencv_haarcascade_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_haarcascade_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_haarcascade_input_0(t_pdp_opencv_haarcascade *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_haarcascade_process(x);
+    }
+}
+
+static void pdp_opencv_haarcascade_free(t_pdp_opencv_haarcascade *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+   
+    cvReleaseMemStorage( &x->storage );
+    //cvReleaseHaarClassifierCascade(&x->cascade);
+    cvReleaseImage(&x->frame);
+    cvReleaseImage(&x->img);
+}
+
+t_class *pdp_opencv_haarcascade_class;
+
+
+void *pdp_opencv_haarcascade_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_haarcascade *x = (t_pdp_opencv_haarcascade *)pd_new(pdp_opencv_haarcascade_class);
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_dataout = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->scale_factor = 1.1;
+    x->min_neighbors = 2;
+    x->mode = 0;
+    x->min_size = 30;
+
+    
+    x->cascade = (CvHaarClassifierCascade*)cvLoad( default_cascade, 0, 0, 0 );
+    if( !x->cascade )
+    {
+        post( "ERROR: Could not load default classifier cascade\n" );
+    } else post( "pdp_opencv_haarcascade: Loaded default classifier cascade\n" );
+    x->storage = cvCreateMemStorage(0);
+
+        x->frame = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    	x->img = cvCreateImage(cvSize(x->frame->width,x->frame->height), IPL_DEPTH_8U, 3);
+
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_haarcascade_setup(void)
+{
+
+    post( "		pdp_opencv_haarcascade");
+    pdp_opencv_haarcascade_class = class_new(gensym("pdp_opencv_haarcascade"), (t_newmethod)pdp_opencv_haarcascade_new,
+    	(t_method)pdp_opencv_haarcascade_free, sizeof(t_pdp_opencv_haarcascade), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_haarcascade_class, (t_method)pdp_opencv_haarcascade_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_haarcascade_class, (t_method)pdp_opencv_haarcascade_load, gensym("load"),  A_SYMBOL, A_NULL );   
+    class_addmethod(pdp_opencv_haarcascade_class, (t_method)pdp_opencv_haarcascade_scale_factor, gensym("scale_factor"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_haarcascade_class, (t_method)pdp_opencv_haarcascade_min_neighbors, gensym("min_neighbors"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_haarcascade_class, (t_method)pdp_opencv_haarcascade_mode, gensym("mode"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_haarcascade_class, (t_method)pdp_opencv_haarcascade_min_size, gensym("min_size"),  A_FLOAT, A_NULL );   
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/pdp_opencv_laplace.c b/pdp_opencv_laplace.c
new file mode 100644
index 0000000..8e0e121
--- /dev/null
+++ b/pdp_opencv_laplace.c
@@ -0,0 +1,266 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_laplace_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int aperture_size;
+    int build_voronoi;
+    int mask_size;
+
+    // The output and temporary images
+    IplImage* frame;
+    IplImage* laplace;
+    IplImage* colorlaplace;
+    IplImage* planes[3];
+
+    
+} t_pdp_opencv_laplace;
+
+
+
+static void pdp_opencv_laplace_process_rgb(t_pdp_opencv_laplace *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+    int i;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_laplace :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	for( i = 0; i < 3; i++ )
+    		cvReleaseImage( &x->planes[i] );
+    	cvReleaseImage( &x->frame );
+    	cvReleaseImage( &x->laplace );
+    	cvReleaseImage( &x->colorlaplace );
+   
+	//Create cv_images 
+    	for( i = 0; i < 3; i++ )
+     	 	x->planes[i] = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    	x->laplace = cvCreateImage( cvSize(x->x_width, x->x_height), IPL_DEPTH_16S, 1 );
+    	x->colorlaplace = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    	x->frame = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->frame->imageData, data, x->x_size*3 );
+        
+	cvCvtPixToPlane( x->frame, x->planes[0], x->planes[1], x->planes[2], 0 );
+        for( i = 0; i < 3; i++ )
+        {
+            cvLaplace( x->planes[i], x->laplace, x->aperture_size );
+            cvConvertScaleAbs( x->laplace, x->planes[i], 1, 0 );
+        }
+        cvCvtPlaneToPix( x->planes[0], x->planes[1], x->planes[2], 0, x->colorlaplace );
+        x->colorlaplace->origin = x->frame->origin;
+
+        //cvShowImage("Laplacian", colorlaplace );
+
+    memcpy( newdata, x->colorlaplace->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+
+static void pdp_opencv_laplace_thresh(t_pdp_opencv_laplace *x, t_floatarg f)
+{
+	if ((f==1)||(f==3)||(f==5)||(f==7)) x->aperture_size = (int)f;
+}
+
+static void pdp_opencv_laplace_sendpacket(t_pdp_opencv_laplace *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_laplace_process(t_pdp_opencv_laplace *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_laplace_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_laplace_process_rgb, pdp_opencv_laplace_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_laplace_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_laplace_input_0(t_pdp_opencv_laplace *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_laplace_process(x);
+    }
+}
+
+static void pdp_opencv_laplace_free(t_pdp_opencv_laplace *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    	for( i = 0; i < 3; i++ )
+    		cvReleaseImage( &x->planes[i] );
+    	cvReleaseImage( &x->frame );
+    	cvReleaseImage( &x->laplace );
+    	cvReleaseImage( &x->colorlaplace );
+}
+
+t_class *pdp_opencv_laplace_class;
+
+
+void *pdp_opencv_laplace_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_laplace *x = (t_pdp_opencv_laplace *)pd_new(pdp_opencv_laplace_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("aperture_size"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->aperture_size = 3;
+
+    
+    for( i = 0; i < 3; i++ )
+     x->planes[i] = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    x->laplace = cvCreateImage( cvSize(x->x_width, x->x_height), IPL_DEPTH_16S, 1 );
+    x->colorlaplace = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    x->frame = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_laplace_setup(void)
+{
+
+    post( "		pdp_opencv_laplace");
+    pdp_opencv_laplace_class = class_new(gensym("pdp_opencv_laplace"), (t_newmethod)pdp_opencv_laplace_new,
+    	(t_method)pdp_opencv_laplace_free, sizeof(t_pdp_opencv_laplace), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_laplace_class, (t_method)pdp_opencv_laplace_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_laplace_class, (t_method)pdp_opencv_laplace_thresh, gensym("aperture_size"),  A_FLOAT, A_NULL );   
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_lk.c b/pdp_opencv_lk.c
new file mode 100644
index 0000000..32a7488
--- /dev/null
+++ b/pdp_opencv_lk.c
@@ -0,0 +1,345 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <ctype.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+const int MAX_COUNT = 500;
+
+typedef struct pdp_opencv_lk_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int win_size;
+
+    // The output and temporary images
+	IplImage *image, *grey, *prev_grey, *pyramid, *prev_pyramid, *swap_temp;
+	
+	CvPoint2D32f* points[2], *swap_points;
+	char* status;
+	int count;
+	int need_to_init;
+	int night_mode;
+	int flags;
+	int add_remove_pt;
+	CvPoint pt;
+
+    
+} t_pdp_opencv_lk;
+
+
+
+static void pdp_opencv_lk_process_rgb(t_pdp_opencv_lk *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+    int i,j,k;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height) || (!x->image)) 
+    {
+
+    	post("pdp_opencv_lk :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->image );
+    	cvReleaseImage( &x->grey );
+    	cvReleaseImage( &x->prev_grey );
+    	cvReleaseImage( &x->pyramid );
+    	cvReleaseImage( &x->prev_pyramid );
+   
+	//Create cv_images 
+    	x->image = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 3 );
+    	x->grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    	x->prev_grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    	x->pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    	x->prev_pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+            x->points[0] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+            x->points[1] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+            x->status = (char*)cvAlloc(MAX_COUNT);
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+        
+        cvCvtColor( x->image, x->grey, CV_BGR2GRAY );
+
+        if( x->night_mode )
+            cvZero( x->image );
+        
+        if( x->need_to_init )
+        {
+            /* automatic initialization */
+            IplImage* eig = cvCreateImage( cvSize(x->grey->width,x->grey->height), 32, 1 );
+            IplImage* temp = cvCreateImage( cvSize(x->grey->width,x->grey->height), 32, 1 );
+            double quality = 0.01;
+            double min_distance = 10;
+
+            x->count = MAX_COUNT;
+            cvGoodFeaturesToTrack( x->grey, eig, temp, x->points[1], &x->count,
+                                   quality, min_distance, 0, 3, 0, 0.04 );
+            cvFindCornerSubPix( x->grey, x->points[1], x->count,
+                cvSize(x->win_size,x->win_size), cvSize(-1,-1),
+                cvTermCriteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,20,0.03));
+            cvReleaseImage( &eig );
+            cvReleaseImage( &temp );
+
+            x->add_remove_pt = 0;
+        }
+        else if( x->count > 0 )
+        {
+            cvCalcOpticalFlowPyrLK( x->prev_grey, x->grey, x->prev_pyramid, x->pyramid,
+                x->points[0], x->points[1], x->count, cvSize(x->win_size,x->win_size), 3, x->status, 0,
+                cvTermCriteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,20,0.03), x->flags );
+            x->flags |= CV_LKFLOW_PYR_A_READY;
+            for( i = k = 0; i < x->count; i++ )
+            {
+                if( x->add_remove_pt )
+                {
+                    double dx = x->pt.x - x->points[1][i].x;
+                    double dy = x->pt.y - x->points[1][i].y;
+
+                    if( dx*dx + dy*dy <= 25 )
+                    {
+                        x->add_remove_pt = 0;
+                        continue;
+                    }
+                }
+                
+                if( !x->status[i] )
+                    continue;
+                
+                x->points[1][k++] = x->points[1][i];
+                cvCircle( x->image, cvPointFrom32f(x->points[1][i]), 3, CV_RGB(0,255,0), -1, 8,0);
+            }
+            x->count = k;
+        }
+
+        if( x->add_remove_pt && x->count < MAX_COUNT )
+        {
+            x->points[1][x->count++] = cvPointTo32f(x->pt);
+            cvFindCornerSubPix( x->grey, x->points[1] + x->count - 1, 1,
+                cvSize(x->win_size,x->win_size), cvSize(-1,-1),
+                cvTermCriteria(CV_TERMCRIT_ITER|CV_TERMCRIT_EPS,20,0.03));
+            x->add_remove_pt = 0;
+        }
+
+        CV_SWAP( x->prev_grey, x->grey, x->swap_temp );
+        CV_SWAP( x->prev_pyramid, x->pyramid, x->swap_temp );
+        CV_SWAP( x->points[0], x->points[1], x->swap_points );
+        x->need_to_init = 0;
+
+    memcpy( newdata, x->image->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+
+static void pdp_opencv_lk_thresh(t_pdp_opencv_lk *x, t_floatarg f)
+{
+	if ((f==1)||(f==3)||(f==5)||(f==7)) x->win_size = (int)f;
+}
+
+static void pdp_opencv_lk_sendpacket(t_pdp_opencv_lk *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_lk_process(t_pdp_opencv_lk *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_lk_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_lk_process_rgb, pdp_opencv_lk_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_lk_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_lk_input_0(t_pdp_opencv_lk *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_lk_process(x);
+    }
+}
+
+static void pdp_opencv_lk_free(t_pdp_opencv_lk *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->image );
+    	cvReleaseImage( &x->grey );
+    	cvReleaseImage( &x->prev_grey );
+    	cvReleaseImage( &x->pyramid );
+    	cvReleaseImage( &x->prev_pyramid );
+}
+
+t_class *pdp_opencv_lk_class;
+
+
+void *pdp_opencv_lk_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_lk *x = (t_pdp_opencv_lk *)pd_new(pdp_opencv_lk_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("win_size"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->win_size = 10;
+	
+	IplImage *image = 0, *grey = 0, *prev_grey = 0, *pyramid = 0, *prev_pyramid = 0, *swap_temp;
+
+	x->points [0] = 0;
+	x->points [1] = 0;
+	x->status = 0;
+	x->count = 0;
+	x->need_to_init = 1;
+	x->night_mode = 0;
+	x->flags = 0;
+	x->add_remove_pt = 0;
+
+    
+    x->image = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 3 );
+    x->grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    x->prev_grey = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    x->pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+    x->prev_pyramid = cvCreateImage( cvSize(x->x_width, x->x_height), 8, 1 );
+            x->points[0] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+            x->points[1] = (CvPoint2D32f*)cvAlloc(MAX_COUNT*sizeof(x->points[0][0]));
+            x->status = (char*)cvAlloc(MAX_COUNT);
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_lk_setup(void)
+{
+
+    post( "		pdp_opencv_lk");
+    pdp_opencv_lk_class = class_new(gensym("pdp_opencv_lk"), (t_newmethod)pdp_opencv_lk_new,
+    	(t_method)pdp_opencv_lk_free, sizeof(t_pdp_opencv_lk), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_lk_class, (t_method)pdp_opencv_lk_thresh, gensym("win_size"),  A_FLOAT, A_NULL );   
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_morphology.c b/pdp_opencv_morphology.c
new file mode 100644
index 0000000..c86a95a
--- /dev/null
+++ b/pdp_opencv_morphology.c
@@ -0,0 +1,313 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_morphology_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int pos;
+    int element_shape;
+    int mode; //to switch between openclose or dilateerode modes
+
+    // The output and temporary images
+    IplImage* src;
+    IplImage* dst;
+
+    IplConvKernel* element;
+
+
+    
+} t_pdp_opencv_morphology;
+
+
+
+
+// callback function for open/close trackbar
+void pdp_opencv_morphology_OpenClose(t_pdp_opencv_morphology *x, int pos)   
+{
+    int n = x->pos;
+    int an = n > 0 ? n : -n;
+    x->element = cvCreateStructuringElementEx( an*2+1, an*2+1, an, an, x->element_shape, 0 );
+    if( n < 0 )
+    {
+        cvErode(x->src,x->dst,x->element,1);
+        cvDilate(x->dst,x->dst,x->element,1);
+    }
+    else
+    {
+        cvDilate(x->src,x->dst,x->element,1);
+        cvErode(x->dst,x->dst,x->element,1);
+    }
+    cvReleaseStructuringElement(&x->element);
+    //cvShowImage("Open/Close",dst);
+}   
+
+// callback function for erode/dilate trackbar
+void pdp_opencv_morphology_ErodeDilate(t_pdp_opencv_morphology *x, int pos)   
+{
+    int n = x->pos;
+    int an = n > 0 ? n : -n;
+    x->element = cvCreateStructuringElementEx( an*2+1, an*2+1, an, an, x->element_shape, 0 );
+    if( n < 0 )
+    {
+        cvErode(x->src,x->dst,x->element,1);
+    }
+    else
+    {
+        cvDilate(x->src,x->dst,x->element,1);
+    }
+    cvReleaseStructuringElement(&x->element);
+    //cvShowImage("Erode/Dilate",dst);
+}   
+
+
+static void pdp_opencv_morphology_process_rgb(t_pdp_opencv_morphology *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+    int i;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_morphology :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->src );
+    	cvReleaseImage( &x->dst );
+   
+	//Create cv_images 
+    	x->src = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    	x->dst = cvCloneImage(x->src);
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->src->imageData, data, x->x_size*3 );
+       
+        if (x->mode==1) pdp_opencv_morphology_OpenClose(x,x->pos);
+        else pdp_opencv_morphology_ErodeDilate(x,x->pos);
+	 
+
+    memcpy( newdata, x->dst->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_morphology_shape(t_pdp_opencv_morphology *x, t_floatarg f)
+{
+        if( (int)f == 1 )
+            x->element_shape = CV_SHAPE_RECT;
+        else if( (int)f == 2 )
+            x->element_shape = CV_SHAPE_ELLIPSE;
+        else if( (int)f == 3 )
+            x->element_shape = CV_SHAPE_CROSS;
+
+}
+
+static void pdp_opencv_morphology_mode(t_pdp_opencv_morphology *x, t_floatarg f)
+{
+    int v = (int)f;
+    if (v<0) v=0;
+    else if (v>1) v=1;
+
+    x->mode=(int)v;
+}
+
+static void pdp_opencv_morphology_pos(t_pdp_opencv_morphology *x, t_floatarg f)
+{
+	x->pos = (int)f;
+}
+
+static void pdp_opencv_morphology_sendpacket(t_pdp_opencv_morphology *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_morphology_process(t_pdp_opencv_morphology *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_morphology_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_morphology_process_rgb, pdp_opencv_morphology_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_morphology_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_morphology_input_0(t_pdp_opencv_morphology *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_morphology_process(x);
+    }
+}
+
+static void pdp_opencv_morphology_free(t_pdp_opencv_morphology *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->src );
+    	cvReleaseImage( &x->dst );
+}
+
+t_class *pdp_opencv_morphology_class;
+
+
+void *pdp_opencv_morphology_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_morphology *x = (t_pdp_opencv_morphology *)pd_new(pdp_opencv_morphology_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("pos"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->element_shape = CV_SHAPE_RECT;
+    x->pos = 0;
+    x->mode = 0;
+    
+    x->element = 0;
+
+    
+    x->src = cvCreateImage( cvSize(x->x_width,x->x_height), 8, 3 );
+    x->dst = cvCloneImage(x->src);
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_morphology_setup(void)
+{
+
+    post( "		pdp_opencv_morphology");
+    pdp_opencv_morphology_class = class_new(gensym("pdp_opencv_morphology"), (t_newmethod)pdp_opencv_morphology_new,
+    	(t_method)pdp_opencv_morphology_free, sizeof(t_pdp_opencv_morphology), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_pos, gensym("pos"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_mode, gensym("mode"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_opencv_morphology_class, (t_method)pdp_opencv_morphology_shape, gensym("shape"),  A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_motempl.c b/pdp_opencv_motempl.c
new file mode 100644
index 0000000..d20e75d
--- /dev/null
+++ b/pdp_opencv_motempl.c
@@ -0,0 +1,448 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#include <time.h>
+#include <math.h>
+#include <ctype.h>
+#endif
+
+
+
+typedef struct pdp_opencv_motempl_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_dataout;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_thresh;
+    int x_mhi_duration;
+
+    int x_infosok; 
+
+    // ring image buffer
+    IplImage **buf;
+    int last;
+
+    // temporary images
+    IplImage *mhi; // MHI
+    IplImage *orient; // orientation
+    IplImage *mask; // valid orientation mask
+    IplImage *segmask; // motion segmentation map
+    CvMemStorage* storage; // temporary storage
+    
+    IplImage* image;
+    IplImage* motion;
+
+    // various tracking parameters (in seconds)
+    double max_time_delta;
+    double min_time_delta;
+    // number of cyclic frame buffer used for motion detection
+    // (should, probably, depend on FPS)
+    int frame_buffer_num; 
+
+    int max_size;
+    int min_size;
+    
+} t_pdp_opencv_motempl;
+
+void  pdp_opencv_motempl_update_mhi( t_pdp_opencv_motempl *x, IplImage* img, IplImage* dst, int diff_threshold )
+{
+    double timestamp = (double)clock()/CLOCKS_PER_SEC; // get current time in seconds
+    CvSize size = cvSize(img->width,img->height); // get current frame size
+    int i, idx1 = x->last, idx2;
+    IplImage* silh;
+    CvSeq* seq;
+    CvRect comp_rect;
+    double count;
+    double angle;
+    CvPoint center;
+    double magnitude;          
+    CvScalar color;
+
+    // allocate images at the beginning or
+    // reallocate them if the frame size is changed
+    if( !x->mhi || x->mhi->width != size.width || x->mhi->height != size.height || !x->buf ) {
+        if( x->buf == 0 ) {
+            x->buf = (IplImage**)malloc(x->frame_buffer_num*sizeof(x->buf[0]));
+            memset( x->buf, 0, x->frame_buffer_num*sizeof(x->buf[0]));
+        }
+        
+        for( i = 0; i < x->frame_buffer_num; i++ ) {
+            cvReleaseImage( &x->buf[i] );
+            x->buf[i] = cvCreateImage( size, IPL_DEPTH_8U, 1 );
+            cvZero( x->buf[i] );
+        }
+        cvReleaseImage( &x->mhi );
+        cvReleaseImage( &x->orient );
+        cvReleaseImage( &x->segmask );
+        cvReleaseImage( &x->mask );
+        
+        x->mhi = cvCreateImage( size, IPL_DEPTH_32F, 1 );
+        cvZero( x->mhi ); // clear MHI at the beginning
+        x->orient = cvCreateImage( size, IPL_DEPTH_32F, 1 );
+        x->segmask = cvCreateImage( size, IPL_DEPTH_32F, 1 );
+        x->mask = cvCreateImage( size, IPL_DEPTH_8U, 1 );
+    }
+
+    cvCvtColor( img, x->buf[x->last], CV_BGR2GRAY ); // convert frame to grayscale
+
+    idx2 = (x->last + 1) % x->frame_buffer_num; // index of (last - (N-1))th frame
+    x->last = idx2;
+
+    silh = x->buf[idx2];
+    cvAbsDiff( x->buf[idx1], x->buf[idx2], silh ); // get difference between frames
+    
+    cvThreshold( silh, silh, diff_threshold, 1, CV_THRESH_BINARY ); // and threshold it
+    cvUpdateMotionHistory( silh, x->mhi, timestamp, x->x_mhi_duration ); // update MHI
+
+    // convert MHI to red 8u image
+    cvCvtScale( x->mhi, x->mask, 255./x->x_mhi_duration,
+                (x->x_mhi_duration - timestamp)*255./x->x_mhi_duration );
+    cvZero( dst );
+    cvCvtPlaneToPix( x->mask, 0, 0, 0, dst );
+
+    // calculate motion gradient orientation and valid orientation mask
+    cvCalcMotionGradient( x->mhi, x->mask, x->orient, x->max_time_delta, x->min_time_delta, 3 ); 
+    
+    if( !x->storage )
+        x->storage = cvCreateMemStorage(0);
+    else
+        cvClearMemStorage(x->storage);
+    
+    // segment motion: get sequence of motion components
+    // segmask is marked motion components map. It is not used further
+    seq = cvSegmentMotion( x->mhi, x->segmask, x->storage, timestamp, x->max_time_delta ); 
+
+    // iterate through the motion components,
+    // One more iteration (i == -1) corresponds to the whole image (global motion)
+    for( i = -1; i < seq->total; i++ ) {
+
+        if( i < 0 ) { // case of the whole image
+            comp_rect = cvRect( 0, 0, size.width, size.height );
+            color = CV_RGB(255,255,255);
+            magnitude = 100;
+        }
+        else { // i-th motion component
+            comp_rect = ((CvConnectedComp*)cvGetSeqElem( seq, i ))->rect;
+            if(( comp_rect.width + comp_rect.height < x->min_size )||( comp_rect.width + comp_rect.height > x->max_size )) // reject very small/big components 
+                continue;
+            color = CV_RGB(255,0,0);
+            magnitude = (comp_rect.width + comp_rect.height) / 4;
+        }
+
+        // select component ROI
+        cvSetImageROI( silh, comp_rect );
+        cvSetImageROI( x->mhi, comp_rect );
+        cvSetImageROI( x->orient, comp_rect );
+        cvSetImageROI( x->mask, comp_rect );
+
+        // calculate orientation
+        angle = cvCalcGlobalOrientation( x->orient, x->mask, x->mhi, timestamp, x->x_mhi_duration);
+        angle = 360.0 - angle;  // adjust for images with top-left origin
+
+        count = cvNorm( silh, 0, CV_L1, 0 ); // calculate number of points within silhouette ROI
+
+        cvResetImageROI( x->mhi );
+        cvResetImageROI( x->orient );
+        cvResetImageROI( x->mask );
+        cvResetImageROI( silh );
+
+        // check for the case of little motion
+        if( count < comp_rect.width*comp_rect.height * 0.05 )
+            continue;
+
+        // draw a clock with arrow indicating the direction
+        center = cvPoint( (comp_rect.x + comp_rect.width/2),
+                          (comp_rect.y + comp_rect.height/2) );
+
+        cvCircle( dst, center, cvRound(magnitude*1.2), color, 3, CV_AA, 0 );
+        cvLine( dst, center, cvPoint( cvRound( center.x + magnitude*cos(angle*CV_PI/180)),
+                cvRound( center.y - magnitude*sin(angle*CV_PI/180))), color, 3, CV_AA, 0 );
+
+
+    	 t_atom rlist[6];
+         SETFLOAT(&rlist[0], i);
+         SETFLOAT(&rlist[1], center.x);
+         SETFLOAT(&rlist[2], center.y);
+         SETFLOAT(&rlist[3], comp_rect.width);
+         SETFLOAT(&rlist[4], comp_rect.height);
+         SETFLOAT(&rlist[5], angle);
+    	 outlet_list( x->x_dataout, 0, 6, rlist );
+    }
+}
+
+
+
+
+static void pdp_opencv_motempl_process_rgb(t_pdp_opencv_motempl *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+    int i;
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_motempl :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->image );
+    	cvReleaseImage( &x->motion );
+   
+	//Create cv_images 
+    	x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    	x->motion = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 3 );
+    	cvZero( x->motion );
+    	x->motion->origin = x->image->origin;
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    
+    // FEM UNA COPIA DEL PACKET A x->grey->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+        
+    pdp_opencv_motempl_update_mhi( x, x->image, x->motion, x->x_thresh );
+
+    memcpy( newdata, x->motion->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_motempl_thresh(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	x->x_thresh = (int)f;
+}
+
+static void pdp_opencv_motempl_min_size(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	if (f>=0) x->min_size = (int)f;
+}
+
+static void pdp_opencv_motempl_max_size(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	if (f>=0) x->max_size = (int)f;
+}
+
+static void pdp_opencv_motempl_mhi_duration(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	if (f>=1) x->x_mhi_duration = (int)f;
+}
+
+static void pdp_opencv_motempl_max_time_delta(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	if (f>0) x->max_time_delta = f;
+}
+
+static void pdp_opencv_motempl_min_time_delta(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	if (f>0) x->min_time_delta = f;
+}
+
+static void pdp_opencv_motempl_frame_buffer_num(t_pdp_opencv_motempl *x, t_floatarg f)
+{
+	if (f>=1) x->frame_buffer_num = (int)f;
+	x->buf = NULL;
+}
+
+static void pdp_opencv_motempl_sendpacket(t_pdp_opencv_motempl *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_motempl_process(t_pdp_opencv_motempl *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_motempl_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_motempl_process_rgb, pdp_opencv_motempl_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_motempl_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_motempl_input_0(t_pdp_opencv_motempl *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_motempl_process(x);
+    }
+}
+
+static void pdp_opencv_motempl_free(t_pdp_opencv_motempl *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+    	cvReleaseImage( &x->image );
+    	cvReleaseImage( &x->motion );
+}
+
+t_class *pdp_opencv_motempl_class;
+
+
+void *pdp_opencv_motempl_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_motempl *x = (t_pdp_opencv_motempl *)pd_new(pdp_opencv_motempl_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("threshold"));
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("min_size"));
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("max_size"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_dataout = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->x_thresh = 30;
+    x->x_mhi_duration = 1;
+	
+    x->last = 0;
+    // various tracking parameters (in seconds)
+    x->max_time_delta = 0.5;
+    x->min_time_delta = 0.05;
+    // number of cyclic frame buffer used for motion detection
+    // (should, probably, depend on FPS)
+    x->frame_buffer_num = 4;
+
+    x->min_size=50;
+    x->max_size=500; 
+    
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->motion = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 3 );
+    cvZero( x->motion );
+    x->motion->origin = x->image->origin;
+
+    x->storage = NULL; 
+
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_motempl_setup(void)
+{
+
+    post( "		pdp_opencv_motempl");
+    pdp_opencv_motempl_class = class_new(gensym("pdp_opencv_motempl"), (t_newmethod)pdp_opencv_motempl_new,
+    	(t_method)pdp_opencv_motempl_free, sizeof(t_pdp_opencv_motempl), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_thresh, gensym("threshold"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_mhi_duration, gensym("mhi_duration"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_max_time_delta, gensym("max_time_delta"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_min_time_delta, gensym("min_time_delta"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_frame_buffer_num, gensym("frame_buffer_num"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_min_size, gensym("min_size"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_motempl_class, (t_method)pdp_opencv_motempl_max_size, gensym("max_size"),  A_FLOAT, A_NULL );   
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/pdp_opencv_threshold.c b/pdp_opencv_threshold.c
new file mode 100644
index 0000000..df65782
--- /dev/null
+++ b/pdp_opencv_threshold.c
@@ -0,0 +1,288 @@
+/*
+ *   Pure Data Packet module.
+ *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <limits.h>
+#include <dlfcn.h>
+
+#include "pdp.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+
+
+typedef struct pdp_opencv_threshold_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_infosok; 
+
+    int threshold_value;
+    int max_value;
+    int threshold_mode;
+    IplImage *image, *gray;
+
+    
+} t_pdp_opencv_threshold;
+
+static void pdp_opencv_threshold_process_rgb(t_pdp_opencv_threshold *x)
+{
+    t_pdp     *header = pdp_packet_header(x->x_packet0);
+    short int *data   = (short int *)pdp_packet_data(x->x_packet0);
+    t_pdp     *newheader = pdp_packet_header(x->x_packet1);
+    short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
+      
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_threshold :: resizing plugins");
+	
+    	//cv_freeplugins(x);
+
+    	x->x_width = header->info.image.width;
+    	x->x_height = header->info.image.height;
+    	x->x_size = x->x_width*x->x_height;
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+    
+	//create the orig image with new size
+        x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+    	// Create the output images with new sizes
+
+    	x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    
+    	//load the plugins
+    	//cv_loadplugins(x, FF_PLUGIN_DIR);
+    }
+    
+    newheader->info.image.encoding = header->info.image.encoding;
+    newheader->info.image.width = x->x_width;
+    newheader->info.image.height = x->x_height;
+
+    memcpy( newdata, data, x->x_size*3 );
+    
+    //cv_processframe(x, x->x_plugin, newdata);
+    
+    // FEM UNA COPIA DEL PACKET A image->imageData ... http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html aqui veiem la estructura de IplImage
+    memcpy( x->image->imageData, data, x->x_size*3 );
+    
+    // Convert to grayscale
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+  
+    // Applies fixed-level thresholding to single-channel array.
+    switch(x->threshold_mode) {
+    	case 0:
+	   cvThreshold(x->gray, x->gray, (float)x->threshold_value, (float)x->max_value, CV_THRESH_BINARY);
+	   break;
+    	case 1:
+	   cvThreshold(x->gray, x->gray, (float)x->threshold_value, (float)x->max_value, CV_THRESH_BINARY_INV);
+	   break;
+    	case 2:
+	   cvThreshold(x->gray, x->gray, (float)x->threshold_value, (float)x->max_value, CV_THRESH_TRUNC);
+	   break;
+    	case 3:
+	   cvThreshold(x->gray, x->gray, (float)x->threshold_value, (float)x->max_value, CV_THRESH_TOZERO);
+	   break;
+    	case 4:
+	   cvThreshold(x->gray, x->gray, (float)x->threshold_value, (float)x->max_value, CV_THRESH_TOZERO_INV);
+	   break;
+    }
+  
+    cvCvtColor(x->gray, x->image, CV_GRAY2BGR);
+    //cvShowImage(wndname, cedge);
+    memcpy( newdata, x->image->imageData, x->x_size*3 );
+
+ 
+    return;
+}
+
+static void pdp_opencv_threshold_param(t_pdp_opencv_threshold *x, t_floatarg f1, t_floatarg f2)
+{
+
+}
+
+static void pdp_opencv_threshold_thresh(t_pdp_opencv_threshold *x, t_floatarg f)
+{
+	x->threshold_value = (int)f;
+}
+
+static void pdp_opencv_threshold_max(t_pdp_opencv_threshold *x, t_floatarg f)
+{
+	x->max_value = (int)f;
+}
+
+static void pdp_opencv_threshold_mode(t_pdp_opencv_threshold *x, t_floatarg f)
+{
+	x->threshold_mode = (int)f;
+}
+
+static void pdp_opencv_threshold_sendpacket(t_pdp_opencv_threshold *x)
+{
+    /* release the packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_opencv_threshold_process(t_pdp_opencv_threshold *x)
+{
+   int encoding;
+   t_pdp *header = 0;
+   char *parname;
+   unsigned pi;
+   int partype;
+   float pardefault;
+   t_atom plist[2];
+   t_atom tlist[2];
+   t_atom vlist[2];
+
+   /* check if image data packets are compatible */
+   if ( (header = pdp_packet_header(x->x_packet0))
+	&& (PDP_BITMAP == header->type)){
+    
+	/* pdp_opencv_threshold_process inputs and write into active inlet */
+	switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+	case PDP_BITMAP_RGB:
+            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, pdp_opencv_threshold_process_rgb, pdp_opencv_threshold_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_threshold_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_threshold_input_0(t_pdp_opencv_threshold *x, t_symbol *s, t_floatarg f)
+{
+    /* if this is a register_ro message or register_rw message, register with packet factory */
+
+    if (s == gensym("register_rw")) 
+       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("bitmap/rgb/*") );
+
+    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
+    {
+        /* add the process method and callback to the process queue */
+        pdp_opencv_threshold_process(x);
+    }
+}
+
+static void pdp_opencv_threshold_free(t_pdp_opencv_threshold *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    //cv_freeplugins(x);
+    
+    	//Destroy cv_images
+	cvReleaseImage(&x->image);
+    	cvReleaseImage(&x->gray);
+}
+
+t_class *pdp_opencv_threshold_class;
+
+
+void *pdp_opencv_threshold_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_threshold *x = (t_pdp_opencv_threshold *)pd_new(pdp_opencv_threshold_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("max_value"));
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("threshold_value"));
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    x->x_width  = 320;
+    x->x_height = 240;
+    x->x_size   = x->x_width * x->x_height;
+
+    x->x_infosok = 0;
+
+    x->threshold_value = 1;
+    x->max_value = 255;
+    x->threshold_mode  = 0;
+    
+
+
+
+    x->image = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->gray = cvCreateImage(cvSize(x->image->width,x->image->height), IPL_DEPTH_8U, 1);
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_threshold_setup(void)
+{
+
+    post( "		pdp_opencv_threshold");
+    pdp_opencv_threshold_class = class_new(gensym("pdp_opencv_threshold"), (t_newmethod)pdp_opencv_threshold_new,
+    	(t_method)pdp_opencv_threshold_free, sizeof(t_pdp_opencv_threshold), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_threshold_class, (t_method)pdp_opencv_threshold_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_threshold_class, (t_method)pdp_opencv_threshold_max, gensym("max_value"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_threshold_class, (t_method)pdp_opencv_threshold_thresh, gensym("threshold_value"),  A_FLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_threshold_class, (t_method)pdp_opencv_threshold_mode, gensym("mode"),  A_FLOAT, A_NULL );   
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif
-- 
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