1 files changed, 333 insertions, 0 deletions

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