From 227cb58a93ca11037cb790a6ad02ba030b7c7072 Mon Sep 17 00:00:00 2001 From: "N.N." Date: Thu, 20 Aug 2009 17:48:52 +0000 Subject: added adaptive threshold external svn path=/trunk/externals/pdp_opencv/; revision=12000 --- pdp_opencv_athreshold.c | 277 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 277 insertions(+) create mode 100644 pdp_opencv_athreshold.c (limited to 'pdp_opencv_athreshold.c') diff --git a/pdp_opencv_athreshold.c b/pdp_opencv_athreshold.c new file mode 100644 index 0000000..ac7c9c2 --- /dev/null +++ b/pdp_opencv_athreshold.c @@ -0,0 +1,277 @@ +/* + * 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_athreshold_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 max_value; + int x_threshold_mode; + int x_threshold_method; + int x_blocksize; + int x_dim; + IplImage *image, *gray; + + +} t_pdp_opencv_athreshold; + +static void pdp_opencv_athreshold_process_rgb(t_pdp_opencv_athreshold *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_athreshold :: 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); + + //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->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( newdata, data, x->x_size*3 ); + + memcpy( x->image->imageData, data, x->x_size*3 ); + + // Convert to grayscale + cvCvtColor(x->image, x->gray, CV_BGR2GRAY); + + // Applies fixed-level thresholding to single-channel array. + switch(x->x_threshold_mode) { + case 0: + cvAdaptiveThreshold(x->gray, x->gray, (float)x->max_value, x->x_threshold_method, CV_THRESH_BINARY, x->x_blocksize, x->x_dim); + break; + case 1: + cvAdaptiveThreshold(x->gray, x->gray, (float)x->max_value, x->x_threshold_method, CV_THRESH_BINARY_INV, x->x_blocksize, x->x_dim); + break; + } + + cvCvtColor(x->gray, x->image, CV_GRAY2BGR); + memcpy( newdata, x->image->imageData, x->x_size*3 ); + + return; +} + +static void pdp_opencv_athreshold_max(t_pdp_opencv_athreshold *x, t_floatarg f) +{ + if ( (int)f>0 ) x->max_value = (int)f; +} + +static void pdp_opencv_athreshold_mode(t_pdp_opencv_athreshold *x, t_floatarg f) +{ + if ( ( (int)f==0 ) || ( (int)f==1 ) ) x->x_threshold_mode = (int)f; +} + +static void pdp_opencv_athreshold_method(t_pdp_opencv_athreshold *x, t_floatarg f) +{ + if ( (int)f==CV_ADAPTIVE_THRESH_MEAN_C ) x->x_threshold_method = CV_ADAPTIVE_THRESH_MEAN_C; + if ( (int)f==CV_ADAPTIVE_THRESH_GAUSSIAN_C ) x->x_threshold_method = CV_ADAPTIVE_THRESH_GAUSSIAN_C; +} + +static void pdp_opencv_athreshold_blocksize(t_pdp_opencv_athreshold *x, t_floatarg f) +{ + if ( ( (int)f>=3 ) && ( (int)(f+1)%2 == 0 ) ) + { + x->x_blocksize = (int)f; + } +} + +static void pdp_opencv_athreshold_dim(t_pdp_opencv_athreshold *x, t_floatarg f) +{ + x->x_dim = (int)f; +} + +static void pdp_opencv_athreshold_sendpacket(t_pdp_opencv_athreshold *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_athreshold_process(t_pdp_opencv_athreshold *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_athreshold_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_athreshold_process_rgb, pdp_opencv_athreshold_sendpacket, &x->x_queue_id); + break; + + default: + /* don't know the type, so dont pdp_opencv_athreshold_process */ + break; + + } + } + +} + +static void pdp_opencv_athreshold_input_0(t_pdp_opencv_athreshold *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_athreshold_process(x); + } +} + +static void pdp_opencv_athreshold_free(t_pdp_opencv_athreshold *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_athreshold_class; + +void *pdp_opencv_athreshold_new(t_floatarg f) +{ + int i; + + t_pdp_opencv_athreshold *x = (t_pdp_opencv_athreshold *)pd_new(pdp_opencv_athreshold_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("max_value")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("blocksize")); + + 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->max_value = 255; + x->x_threshold_mode = 0; + x->x_threshold_method = CV_ADAPTIVE_THRESH_MEAN_C; + x->x_blocksize = 3; + x->x_dim = 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); + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_opencv_athreshold_setup(void) +{ + + post( " pdp_opencv_athreshold"); + pdp_opencv_athreshold_class = class_new(gensym("pdp_opencv_athreshold"), (t_newmethod)pdp_opencv_athreshold_new, + (t_method)pdp_opencv_athreshold_free, sizeof(t_pdp_opencv_athreshold), 0, A_DEFFLOAT, A_NULL); + + class_addmethod(pdp_opencv_athreshold_class, (t_method)pdp_opencv_athreshold_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_opencv_athreshold_class, (t_method)pdp_opencv_athreshold_max, gensym("max_value"), A_FLOAT, A_NULL ); + class_addmethod(pdp_opencv_athreshold_class, (t_method)pdp_opencv_athreshold_mode, gensym("mode"), A_FLOAT, A_NULL ); + class_addmethod(pdp_opencv_athreshold_class, (t_method)pdp_opencv_athreshold_method, gensym("method"), A_FLOAT, A_NULL ); + class_addmethod(pdp_opencv_athreshold_class, (t_method)pdp_opencv_athreshold_blocksize, gensym("blocksize"), A_FLOAT, A_NULL ); + class_addmethod(pdp_opencv_athreshold_class, (t_method)pdp_opencv_athreshold_dim, gensym("dim"), A_FLOAT, A_NULL ); + + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1