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authorN.N. <sevyves@users.sourceforge.net>2009-08-20 17:48:52 +0000
committerN.N. <sevyves@users.sourceforge.net>2009-08-20 17:48:52 +0000
commit227cb58a93ca11037cb790a6ad02ba030b7c7072 (patch)
tree58d9a6b5fd90c620076852a3aebc9d75c92ec137 /pdp_opencv_athreshold.c
parentef57f7be91cbceceaa16471f0cc6ed881bda6e16 (diff)
added adaptive threshold external
svn path=/trunk/externals/pdp_opencv/; revision=12000
Diffstat (limited to 'pdp_opencv_athreshold.c')
-rw-r--r--pdp_opencv_athreshold.c277
1 files changed, 277 insertions, 0 deletions
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 <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_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