added contours compare, hist compare, knearest (OCR), cleanups

svn path=/trunk/externals/pdp_opencv/; revision=11920

1 files changed, 319 insertions, 0 deletions

diff --git a/pdp_opencv_bgstats.cc b/pdp_opencv_bgstats.cc
new file mode 100755
index 0000000..388367f
--- /dev/null
+++ b/pdp_opencv_bgstats.cc
@@ -0,0 +1,319 @@
+/*
+ *   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_bgstats_struct
+{
+    t_object x_obj;
+    t_float x_f;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_outlet1;
+    int x_packet0;
+    int x_packet1;
+    int x_packet2;
+    int x_dropped;
+    int x_queue_id;
+
+    int x_width;
+    int x_height;
+    int x_size;
+
+    int x_erode; 
+    float x_minarea; 
+    float x_delta; 
+    int x_frames; 
+
+    IplImage *foreground, *incoming;
+
+    // Stat background model data
+    CvBGStatModel *x_model; 
+    CvFGDStatModelParams x_modelparams; 
+    
+} t_pdp_opencv_bgstats;
+
+static void pdp_opencv_bgstats_process_rgb(t_pdp_opencv_bgstats *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); 
+  t_pdp     *bgheader = pdp_packet_header(x->x_packet2);
+  short int *bgdata = (short int *)pdp_packet_data(x->x_packet2);
+
+      
+  if ((x->x_width != (t_int)header->info.image.width) || 
+      (x->x_height != (t_int)header->info.image.height)) 
+  {
+      x->x_width = header->info.image.width;
+      x->x_height = header->info.image.height;
+      x->x_size = x->x_width*x->x_height;
+      x->x_frames = 0;
+    
+      //Destroy cv_images
+      cvReleaseImage(&x->foreground);
+      cvReleaseImage(&x->incoming);
+    
+      //create the orig image with new size
+      x->foreground = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+      x->incoming = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+      cvReleaseBGStatModel( &x->x_model );
+      x->x_model = NULL;
+  }
+    
+  newheader->info.image.encoding = header->info.image.encoding;
+  newheader->info.image.width = x->x_width;
+  newheader->info.image.height = x->x_height;
+
+  bgheader->info.image.encoding = header->info.image.encoding;
+  bgheader->info.image.width = x->x_width;
+  bgheader->info.image.height = x->x_height;
+
+  memcpy( x->incoming->imageData, data, x->x_size*3 );
+
+  if ( x->x_model == NULL )
+  {
+    x->x_modelparams.Lc = CV_BGFG_FGD_LC;
+    x->x_modelparams.N1c = CV_BGFG_FGD_N1C;
+    x->x_modelparams.N2c = CV_BGFG_FGD_N2C;
+    x->x_modelparams.Lcc = CV_BGFG_FGD_LCC;
+    x->x_modelparams.N1cc = CV_BGFG_FGD_N1CC;
+    x->x_modelparams.N2cc = CV_BGFG_FGD_N2CC;
+    x->x_modelparams.is_obj_without_holes = 1;
+    x->x_modelparams.alpha1 = CV_BGFG_FGD_ALPHA_1;
+    x->x_modelparams.alpha2 = CV_BGFG_FGD_ALPHA_2;
+    x->x_modelparams.alpha3 = CV_BGFG_FGD_ALPHA_3;
+    x->x_modelparams.T = CV_BGFG_FGD_T;
+    x->x_modelparams.perform_morphing = x->x_erode;
+    x->x_modelparams.minArea = x->x_minarea;
+    x->x_modelparams.delta = x->x_delta;
+    x->x_model = cvCreateFGDStatModel( x->incoming, &x->x_modelparams );
+  }
+  else if ( x->x_frames == 5 )
+  {
+    // strange model stabilize after a few frames
+    cvReleaseBGStatModel( &x->x_model );
+    x->x_model = cvCreateFGDStatModel( x->incoming, &x->x_modelparams );
+  }
+  else
+  {
+     cvUpdateBGStatModel( x->incoming, x->x_model );
+  }
+
+  x->x_frames++;
+
+  cvCvtColor(x->x_model->foreground, x->foreground, CV_GRAY2BGR);
+
+  memcpy( newdata, x->foreground->imageData, x->x_size*3 );
+  memcpy( bgdata, x->x_model->background->imageData, x->x_size*3 );
+ 
+  return;
+}
+
+static void pdp_opencv_bgstats_minarea(t_pdp_opencv_bgstats *x, t_floatarg f)
+{
+    if ( ( (int)f>0 ) && ( x->x_model != NULL ) )     
+    {
+       x->x_minarea = f;
+       x->x_modelparams.minArea = f;
+       cvReleaseBGStatModel( &x->x_model );
+       x->x_model = cvCreateFGDStatModel( x->incoming, &x->x_modelparams );
+    }
+}
+
+static void pdp_opencv_bgstats_erode(t_pdp_opencv_bgstats *x, t_floatarg f)
+{
+    if ( ( (int)f>0 ) && ( x->x_model != NULL ) )     
+    {
+       x->x_erode = (int)f;
+       x->x_modelparams.perform_morphing = (int)f;
+       cvReleaseBGStatModel( &x->x_model );
+       x->x_model = cvCreateFGDStatModel( x->incoming, &x->x_modelparams );
+    }
+}
+
+static void pdp_opencv_bgstats_delta(t_pdp_opencv_bgstats *x, t_floatarg f)
+{
+    if ( ( f>0.0 ) && ( x->x_model != NULL ) )     
+    {
+       x->x_delta = f;
+       x->x_modelparams.delta = f;
+       cvReleaseBGStatModel( &x->x_model );
+       x->x_model = cvCreateFGDStatModel( x->incoming, &x->x_modelparams );
+    }
+}
+
+static void pdp_opencv_bgstats_reset(t_pdp_opencv_bgstats *x)
+{
+    if ( x->x_model != NULL )     
+    {
+       cvReleaseBGStatModel( &x->x_model );
+       x->x_model = cvCreateFGDStatModel( x->incoming, &x->x_modelparams );
+    }
+}
+
+static void pdp_opencv_bgstats_sendpacket(t_pdp_opencv_bgstats *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);
+    pdp_packet_pass_if_valid(x->x_outlet1, &x->x_packet2);
+}
+
+static void pdp_opencv_bgstats_process(t_pdp_opencv_bgstats *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_bgstats_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);
+            x->x_packet2 = pdp_packet_clone_rw(x->x_packet0);
+            pdp_queue_add(x, (void*)pdp_opencv_bgstats_process_rgb, (void*)pdp_opencv_bgstats_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    /* don't know the type, so dont pdp_opencv_bgstats_process */
+	    break;
+	    
+	}
+    }
+
+}
+
+static void pdp_opencv_bgstats_input_0(t_pdp_opencv_bgstats *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_bgstats_process(x);
+    }
+}
+
+static void pdp_opencv_bgstats_free(t_pdp_opencv_bgstats *x)
+{
+  int i;
+
+    pdp_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    
+    //Destroy cv_images
+    cvReleaseImage(&x->foreground);
+    cvReleaseImage(&x->incoming);
+
+    // release model
+    cvReleaseBGStatModel( &x->x_model );
+}
+
+t_class *pdp_opencv_bgstats_class;
+
+
+void *pdp_opencv_bgstats_new(t_floatarg f)
+{
+    int i;
+
+    t_pdp_opencv_bgstats *x = (t_pdp_opencv_bgstats *)pd_new(pdp_opencv_bgstats_class);
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+    x->x_outlet1 = outlet_new(&x->x_obj, &s_anything);
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_packet2 = -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_erode = 2;
+    x->x_minarea = 10*10;
+    x->x_delta = 0.1; // 0.1 seconds
+    x->x_frames = 0;
+
+    x->foreground = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+    x->incoming = cvCreateImage(cvSize(x->x_width,x->x_height), IPL_DEPTH_8U, 3);
+
+    x->x_model = NULL;
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_opencv_bgstats_setup(void)
+{
+
+    post( "		pdp_opencv_bgstats");
+    pdp_opencv_bgstats_class = class_new(gensym("pdp_opencv_bgstats"), (t_newmethod)pdp_opencv_bgstats_new,
+    	(t_method)pdp_opencv_bgstats_free, sizeof(t_pdp_opencv_bgstats), 0, A_DEFFLOAT, A_NULL);
+
+    class_addmethod(pdp_opencv_bgstats_class, (t_method)pdp_opencv_bgstats_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_opencv_bgstats_class, (t_method)pdp_opencv_bgstats_minarea, gensym("minarea"),  A_DEFFLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_bgstats_class, (t_method)pdp_opencv_bgstats_erode, gensym("erode"),  A_DEFFLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_bgstats_class, (t_method)pdp_opencv_bgstats_delta, gensym("delta"),  A_DEFFLOAT, A_NULL );   
+    class_addmethod(pdp_opencv_bgstats_class, (t_method)pdp_opencv_bgstats_reset, gensym("reset"), A_NULL );   
+
+}
+
+#ifdef __cplusplus
+}
+#endif