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#include "_cvaux.h"

//  Function cvRefineForegroundMaskBySegm preforms FG post-processing based on segmentation
//    (all pixels of the segment will be classified as FG if majority of pixels of the region are FG).
// parameters:
//      segments - pointer to result of segmentation (for example MeanShiftSegmentation)
//      bg_model - pointer to CvBGStatModel structure
CV_IMPL void cvRefineForegroundMaskBySegm( CvSeq* segments, CvBGStatModel*  bg_model )
{
	IplImage* tmp_image = cvCreateImage(cvSize(bg_model->foreground->width,bg_model->foreground->height),
							IPL_DEPTH_8U, 1);
	for( ; segments; segments = ((CvSeq*)segments)->h_next )
	{
		CvSeq seq = *segments;
		seq.v_next = seq.h_next = NULL;
		cvZero(tmp_image);
		cvDrawContours( tmp_image, &seq, CV_RGB(0, 0, 255), CV_RGB(0, 0, 255), 10, -1);
		int num1 = cvCountNonZero(tmp_image);
        cvAnd(tmp_image, bg_model->foreground, tmp_image);
		int num2 = cvCountNonZero(tmp_image);
		if( num2 > num1*0.5 )
			cvDrawContours( bg_model->foreground, &seq, CV_RGB(0, 0, 255), CV_RGB(0, 0, 255), 10, -1);
		else
			cvDrawContours( bg_model->foreground, &seq, CV_RGB(0, 0, 0), CV_RGB(0, 0, 0), 10, -1);
	}
	cvReleaseImage(&tmp_image);
}

/* End of file. */