1 files changed, 242 insertions, 0 deletions

diff --git a/pdp_opencv_hu_moments.cc b/pdp_opencv_hu_moments.cc
new file mode 100755
index 0000000..662bf32
--- /dev/null
+++ b/pdp_opencv_hu_moments.cc
@@ -0,0 +1,242 @@
+/*
+ *   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 MAX_MARKERS 100
+
+typedef struct pdp_opencv_hu_moments_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_dataout;
+    t_atom    rlist[7];
+    int x_packet0;
+    int x_packet1;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_binary;
+
+    IplImage *image, *gray;
+    CvMoments x_moments;
+    CvHuMoments x_humoments;
+
+} t_pdp_opencv_hu_moments;
+
+static void pdp_opencv_hu_moments_process_rgb(t_pdp_opencv_hu_moments *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); 
+    char tindex[4];
+    int i = 0;                   // Indicator of cycles.
+    int im = 0;                  // Indicator of markers.
+
+    if ((x->x_width != (t_int)header->info.image.width) || 
+        (x->x_height != (t_int)header->info.image.height)) 
+    {
+
+    	post("pdp_opencv_hu_moments :: resizing");
+
+    	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);
+    	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( x->image->imageData, data, x->x_size*3 );
+    
+    // Convert to grayscale
+    cvCvtColor(x->image, x->gray, CV_BGR2GRAY);
+
+    cvMoments( x->gray, &x->x_moments, x->x_binary );
+    cvGetHuMoments( &x->x_moments, &x->x_humoments );
+
+    SETFLOAT(&x->rlist[0], x->x_humoments.hu1);
+    SETFLOAT(&x->rlist[1], x->x_humoments.hu2);
+    SETFLOAT(&x->rlist[2], x->x_humoments.hu3);
+    SETFLOAT(&x->rlist[3], x->x_humoments.hu4);
+    SETFLOAT(&x->rlist[4], x->x_humoments.hu5);
+    SETFLOAT(&x->rlist[5], x->x_humoments.hu6);
+    SETFLOAT(&x->rlist[6], x->x_humoments.hu7);
+
+    outlet_list( x->x_dataout, 0, 7, x->rlist );
+
+    memcpy( newdata, x->image->imageData, x->x_size*3 );
+ 
+    return;
+}
+
+static void pdp_opencv_hu_moments_sendpacket(t_pdp_opencv_hu_moments *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_hu_moments_process(t_pdp_opencv_hu_moments *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_hu_moments_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, (void*)pdp_opencv_hu_moments_process_rgb, (void*)pdp_opencv_hu_moments_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_hu_moments_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_hu_moments_input_0(t_pdp_opencv_hu_moments *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((char*)"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_hu_moments_process(x);
+    }
+}
+
+static void pdp_opencv_hu_moments_free(t_pdp_opencv_hu_moments *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    
+    //Destroy cv_images
+    cvReleaseImage(&x->image);
+    cvReleaseImage(&x->gray);
+}
+
+t_class *pdp_opencv_hu_moments_class;
+
+
+void *pdp_opencv_hu_moments_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_hu_moments *x = (t_pdp_opencv_hu_moments *)pd_new(pdp_opencv_hu_moments_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_binary = 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;
+}
+
+static void pdp_opencv_hu_moments_binary(t_pdp_opencv_hu_moments *x, t_floatarg f)
+{
+    if ( ((int)f==1) || ((int)f==0) ) x->x_binary = (int)f;
+}
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_hu_moments_setup(void)
+{
+
+    post( "		pdp_opencv_hu_moments");
+    pdp_opencv_hu_moments_class = class_new(gensym("pdp_opencv_hu_moments"), (t_newmethod)pdp_opencv_hu_moments_new,
+    	(t_method)pdp_opencv_hu_moments_free, sizeof(t_pdp_opencv_hu_moments), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_hu_moments_class, (t_method)pdp_opencv_hu_moments_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_hu_moments_class, (t_method)pdp_opencv_hu_moments_binary, gensym("binary"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif