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-rwxr-xr-xpdp_opencv_bgsubstract.cc292
1 files changed, 292 insertions, 0 deletions
diff --git a/pdp_opencv_bgsubstract.cc b/pdp_opencv_bgsubstract.cc
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+++ b/pdp_opencv_bgsubstract.cc
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+/*
+ * 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_image, *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_image);
+ 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_image = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 3 );
+ 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_image->imageData, data, x->x_size*3 );
+ x->x_set=0;
+ }
+
+ //cvSubS (x->prev_image,cvScalar(x->x_threshold,x->x_threshold,x->x_threshold,x->x_threshold),x->grayLow,NULL);
+ //cvAddS (x->prev_image,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);
+
+ int h,w,hlength, chRed, chGreen, chBlue;
+ long src,pixsize;
+
+ chRed =0;
+ chGreen =1;
+ chBlue =2;
+
+ src = 0;
+
+
+ for (h=0; h<x->image->height; h++){
+ for(w=0; w<x->image->width; w++){
+ if (((x->image->imageData[src+chRed ] > x->prev_image->imageData[src+chRed ] - x->x_threshold)&&
+ (x->image->imageData[src+chRed ] < x->prev_image->imageData[src+chRed ] + x->x_threshold))&&
+ ((x->image->imageData[src+chGreen] > x->prev_image->imageData[src+chGreen] - x->x_threshold)&&
+ (x->image->imageData[src+chGreen] < x->prev_image->imageData[src+chGreen] + x->x_threshold))&&
+ ((x->image->imageData[src+chBlue ] > x->prev_image->imageData[src+chBlue ] - x->x_threshold)&&
+ (x->image->imageData[src+chBlue ] < x->prev_image->imageData[src+chBlue ] + x->x_threshold)))
+ {
+ x->image->imageData[src+chRed] = 0;
+ x->image->imageData[src+chGreen] = 0;
+ x->image->imageData[src+chBlue] = 0;
+ }
+ src+=3;
+ }
+ }
+
+
+ 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, (void*)pdp_opencv_bgsubstract_process_rgb, (void*)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((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_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_image);
+ 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_image = cvCreateImage( cvSize(x->image->width,x->image->height), 8, 3 );
+ 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