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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_bgsubstract.h"
CPPEXTERN_NEW(pix_opencv_bgsubstract)
/////////////////////////////////////////////////////////
//
// pix_opencv_bgsubstract
//
/////////////////////////////////////////////////////////
// Constructor
//
/////////////////////////////////////////////////////////
pix_opencv_bgsubstract :: pix_opencv_bgsubstract()
{
inlet_new(this->x_obj, &this->x_obj->ob_pd, gensym("float"), gensym("ft1"));
x_threshold = 13;
x_set = 1;
comp_xsize = 0;
comp_ysize = 0;
orig = NULL;
gray = NULL;
rgb = NULL;
grayLow = NULL;
grayUp = NULL;
prev_gray = NULL;
diff_8U = NULL;
}
/////////////////////////////////////////////////////////
// Destructor
//
/////////////////////////////////////////////////////////
pix_opencv_bgsubstract :: ~pix_opencv_bgsubstract()
{
//Destroy cv_images to clean memory
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
cvReleaseImage(&prev_gray);
cvReleaseImage(&grayLow);
cvReleaseImage(&grayUp);
cvReleaseImage(&diff_8U);
}
/////////////////////////////////////////////////////////
// processImage
//
/////////////////////////////////////////////////////////
void pix_opencv_bgsubstract :: processRGBAImage(imageStruct &image)
{
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
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
cvReleaseImage(&prev_gray);
cvReleaseImage(&grayLow);
cvReleaseImage(&grayUp);
cvReleaseImage(&diff_8U);
//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);
// Create the output images with new sizes
gray = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
grayLow = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
grayUp = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
prev_gray = cvCreateImage(cvSize(orig->width,orig->height), 8, 1);
diff_8U = cvCreateImage(cvSize(orig->width,orig->height), 8, 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);
if (x_set) {
memcpy( prev_gray->imageData, gray->imageData, image.xsize*image.ysize );
x_set=0;
}
cvSubS (prev_gray,cvScalar(x_threshold,x_threshold,x_threshold,x_threshold),grayLow,NULL);
cvAddS (prev_gray,cvScalar(x_threshold,x_threshold,x_threshold,x_threshold),grayUp,NULL);
cvInRange (gray, grayLow, grayUp, diff_8U);
cvNot (diff_8U,diff_8U);
cvCvtColor(diff_8U, orig, CV_GRAY2BGRA);
//copy back the processed frame to image
memcpy( image.data, orig->imageData, image.xsize*image.ysize*4 );
}
void pix_opencv_bgsubstract :: processRGBImage(imageStruct &image)
{
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
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
cvReleaseImage(&prev_gray);
cvReleaseImage(&grayLow);
cvReleaseImage(&grayUp);
cvReleaseImage(&diff_8U);
//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);
// Create the output images with new sizes
gray = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
grayLow = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
grayUp = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
prev_gray = cvCreateImage(cvSize(orig->width,orig->height), 8, 1);
diff_8U = cvCreateImage(cvSize(orig->width,orig->height), 8, 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( rgb->imageData, image.data, image.xsize*image.ysize*3 );
// Convert to grayscale
cvCvtColor(rgb, gray, CV_BGRA2GRAY);
if (x_set) {
memcpy( prev_gray->imageData, gray->imageData, image.xsize*image.ysize );
x_set=0;
}
cvSubS (prev_gray,cvScalar(x_threshold,x_threshold,x_threshold,x_threshold),grayLow,NULL);
cvAddS (prev_gray,cvScalar(x_threshold,x_threshold,x_threshold,x_threshold),grayUp,NULL);
cvInRange (gray, grayLow, grayUp, diff_8U);
cvNot (diff_8U,diff_8U);
cvCvtColor(diff_8U, rgb, CV_GRAY2BGR);
//copy back the processed frame to image
memcpy( image.data, rgb->imageData, image.xsize*image.ysize*3 );
}
void pix_opencv_bgsubstract :: processYUVImage(imageStruct &image)
{
}
void pix_opencv_bgsubstract :: processGrayImage(imageStruct &image)
{
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
cvReleaseImage(&orig);
cvReleaseImage(&gray);
cvReleaseImage(&rgb);
cvReleaseImage(&prev_gray);
cvReleaseImage(&grayLow);
cvReleaseImage(&grayUp);
cvReleaseImage(&diff_8U);
//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);
// Create the output images with new sizes
gray = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
grayLow = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
grayUp = cvCreateImage(cvSize(orig->width,orig->height), IPL_DEPTH_8U, 1);
prev_gray = cvCreateImage(cvSize(orig->width,orig->height), 8, 1);
diff_8U = cvCreateImage(cvSize(orig->width,orig->height), 8, 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( gray->imageData, image.data, image.xsize*image.ysize );
if (x_set) {
memcpy( prev_gray->imageData, gray->imageData, image.xsize*image.ysize );
x_set=0;
}
cvSubS (prev_gray,cvScalar(x_threshold,x_threshold,x_threshold,x_threshold),grayLow,NULL);
cvAddS (prev_gray,cvScalar(x_threshold,x_threshold,x_threshold,x_threshold),grayUp,NULL);
cvInRange (gray, grayLow, grayUp, diff_8U);
cvNot (diff_8U,diff_8U);
//copy back the processed frame to image
memcpy( image.data, diff_8U->imageData, image.xsize*image.ysize );
}
/////////////////////////////////////////////////////////
// floatThreshMess
//
/////////////////////////////////////////////////////////
void pix_opencv_bgsubstract :: floatThreshMess (float x_threshold)
{
this->x_threshold = (int)x_threshold;
}
void pix_opencv_bgsubstract :: SetMess ()
{
this->x_set = 1;
}
/////////////////////////////////////////////////////////
// static member function
//
/////////////////////////////////////////////////////////
void pix_opencv_bgsubstract :: obj_setupCallback(t_class *classPtr)
{
class_addmethod(classPtr, (t_method)&pix_opencv_bgsubstract::floatTreshMessCallback,
gensym("ft1"), A_FLOAT, A_NULL);
class_addmethod(classPtr, (t_method)&pix_opencv_bgsubstract::SetMessCallback,
gensym("set"), A_NULL);
}
void pix_opencv_bgsubstract :: floatTreshMessCallback(void *data, t_floatarg x_threshold)
{
GetMyClass(data)->floatThreshMess((float)x_threshold);
}
void pix_opencv_bgsubstract :: SetMessCallback(void *data)
{
GetMyClass(data)->SetMess();
}
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