From db131dd7f6e5f9c222198a74b3f11e7f99f4da70 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?llu=C3=ADs=20g=C3=B3mez=20i=20bigord=C3=A0?= Date: Sun, 25 May 2008 21:32:41 +0000 Subject: First svn commit svn path=/trunk/externals/pdp_opencv/; revision=9912 --- pdp_opencv_edge.c | 272 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 272 insertions(+) create mode 100644 pdp_opencv_edge.c (limited to 'pdp_opencv_edge.c') 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 + * + * 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 +#include +#include +#include +#include +#include + +#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 -- cgit v1.2.1