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////////////////////////////////////////////////////////
//
// GEM - Graphics Environment for Multimedia
//
// zmoelnig@iem.kug.ac.at
//
// Implementation file
//
// Copyright (c) 1997-2000 Mark Danks.
// Copyright (c) Günther Geiger.
// Copyright (c) 2001-2002 IOhannes m zmoelnig. forum::für::umläute. IEM
// Copyright (c) 2002 James Tittle & Chris Clepper
// For information on usage and redistribution, and for a DISCLAIMER OF ALL
// WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
//
/////////////////////////////////////////////////////////
#include "pix_opencv_threshold.h"
CPPEXTERN_NEW(pix_opencv_threshold)
/////////////////////////////////////////////////////////
//
// pix_opencv_threshold
//
/////////////////////////////////////////////////////////
// Constructor
//
/////////////////////////////////////////////////////////
pix_opencv_threshold :: pix_opencv_threshold()
{
inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("float"), gensym("max"));
inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("float"), gensym("threshold"));
threshold_value = 50;
max_value = 255;
threshold_mode = 0;
comp_xsize = 0;
comp_ysize = 0;
orig = NULL;
rgb = NULL;
gray = NULL;
}
/////////////////////////////////////////////////////////
// Destructor
//
/////////////////////////////////////////////////////////
pix_opencv_threshold :: ~pix_opencv_threshold()
{
//Destroy cv_images to clean memory
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
}
/////////////////////////////////////////////////////////
// processImage
//
/////////////////////////////////////////////////////////
void pix_opencv_threshold :: processRGBAImage(imageStruct &image)
{
unsigned char *pixels = image.data;
if ((this->comp_xsize!=image.xsize)||(this->comp_ysize!=image.ysize)||(!orig)) {
this->comp_xsize = image.xsize;
this->comp_ysize = image.ysize;
//Destroy cv_images to clean memory
if ( orig )
{
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
}
//create the orig image with new size
orig = cvCreateImage(cvSize(image.xsize,image.ysize), IPL_DEPTH_8U, 4);
rgb = cvCreateImage(cvSize(image.xsize,image.ysize), IPL_DEPTH_8U, 3);
gray = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
}
// Here we make a copy of the pixel data from image to orig->imageData
// orig is a IplImage struct, the default image type in openCV, take a look on the IplImage data structure here
// http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html
memcpy( orig->imageData, image.data, image.xsize*image.ysize*4 );
// Convert to grayscale
cvCvtColor(orig, gray, CV_BGRA2GRAY);
// Applies fixed-level thresholding to single-channel array.
switch(this->threshold_mode) {
case 0:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_BINARY);
break;
case 1:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_BINARY_INV);
break;
case 2:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TRUNC);
break;
case 3:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TOZERO);
break;
case 4:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TOZERO_INV);
break;
}
cvCvtColor(gray, orig, CV_GRAY2BGRA);
//copy back the processed frame to image
memcpy( image.data, orig->imageData, image.xsize*image.ysize*4 );
}
void pix_opencv_threshold :: processRGBImage(imageStruct &image)
{
unsigned char *pixels = image.data;
if ((this->comp_xsize!=image.xsize)||(this->comp_ysize!=image.ysize)||(!rgb)) {
this->comp_xsize = image.xsize;
this->comp_ysize = image.ysize;
//Destroy cv_images to clean memory
if ( rgb )
{
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
}
//create the orig image with new size
orig = cvCreateImage(cvSize(image.xsize,image.ysize), IPL_DEPTH_8U, 4);
rgb = cvCreateImage(cvSize(image.xsize,image.ysize), IPL_DEPTH_8U, 3);
gray = cvCreateImage(cvSize(rgb->width,rgb->height), IPL_DEPTH_8U, 1);
}
// 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( rgb->imageData, image.data, image.xsize*image.ysize*3 );
// Convert to grayscale
cvCvtColor(rgb, gray, CV_RGB2GRAY);
// Applies fixed-level thresholding to single-channel array.
switch(this->threshold_mode) {
case 0:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_BINARY);
break;
case 1:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_BINARY_INV);
break;
case 2:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TRUNC);
break;
case 3:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TOZERO);
break;
case 4:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TOZERO_INV);
break;
}
cvCvtColor(gray, rgb, CV_GRAY2BGR);
memcpy( image.data, rgb->imageData, image.xsize*image.ysize*3 );
}
void pix_opencv_threshold :: processYUVImage(imageStruct &image)
{
post( "pix_opencv_threshold : yuv format not supported" );
}
void pix_opencv_threshold :: processGrayImage(imageStruct &image)
{
unsigned char *pixels = image.data;
if ((this->comp_xsize!=image.xsize)||(this->comp_ysize!=image.ysize)||(!rgb)) {
this->comp_xsize = image.xsize;
this->comp_ysize = image.ysize;
//Destroy cv_images to clean memory
if ( rgb )
{
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
}
//create the orig image with new size
orig = cvCreateImage(cvSize(image.xsize,image.ysize), IPL_DEPTH_8U, 4);
rgb = cvCreateImage(cvSize(image.xsize,image.ysize), IPL_DEPTH_8U, 3);
gray = cvCreateImage(cvSize(rgb->width,rgb->height), IPL_DEPTH_8U, 1);
}
// 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( gray->imageData, image.data, image.xsize*image.ysize );
// Applies fixed-level thresholding to single-channel array.
switch(this->threshold_mode) {
case 0:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_BINARY);
break;
case 1:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_BINARY_INV);
break;
case 2:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TRUNC);
break;
case 3:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TOZERO);
break;
case 4:
cvThreshold(gray, gray, (float)this->threshold_value, (float)this->max_value, CV_THRESH_TOZERO_INV);
break;
}
memcpy( image.data, gray->imageData, image.xsize*image.ysize );
}
/////////////////////////////////////////////////////////
// floatThreshMess
//
/////////////////////////////////////////////////////////
void pix_opencv_threshold :: floatMaxMess (float maxvalue)
{
if ( (int)maxvalue>0 ) this->max_value = maxvalue;
}
void pix_opencv_threshold :: floatThreshMess (float edge_thresh)
{
this->threshold_value = edge_thresh;
}
void pix_opencv_threshold :: floatModeMess (float mode)
{
if ((mode>=0)&&(mode<5)) this->threshold_mode = (int)mode;
}
/////////////////////////////////////////////////////////
// static member function
//
/////////////////////////////////////////////////////////
void pix_opencv_threshold :: obj_setupCallback(t_class *classPtr)
{
class_addmethod(classPtr, (t_method)&pix_opencv_threshold::floatModeMessCallback,
gensym("mode"), A_FLOAT, A_NULL);
class_addmethod(classPtr, (t_method)&pix_opencv_threshold::floatMaxMessCallback,
gensym("max"), A_FLOAT, A_NULL);
class_addmethod(classPtr, (t_method)&pix_opencv_threshold::floatThreshMessCallback,
gensym("threshold"), A_FLOAT, A_NULL);
}
void pix_opencv_threshold :: floatMaxMessCallback(void *data, t_floatarg maxvalue)
{
GetMyClass(data)->floatMaxMess((float)maxvalue);
}
void pix_opencv_threshold :: floatThreshMessCallback(void *data, t_floatarg edge_thresh)
{
GetMyClass(data)->floatThreshMess((float)edge_thresh);
}
void pix_opencv_threshold :: floatModeMessCallback(void *data, t_floatarg mode)
{
GetMyClass(data)->floatModeMess((float)mode);
}
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