void bgrtohsv(){
	char fname[MAX_PATH];
	while (openFileDlg(fname))
	{
		Mat src = imread(fname);
		Mat hsv;
		Mat channels[3];
		int height = src.rows;
		int width = src.cols;
		Mat dstH = Mat(height, width, CV_8UC1);
		Mat dstS = Mat(height, width, CV_8UC1);
		Mat dstV = Mat(height, width, CV_8UC1);

		cvtColor(src, hsv, CV_BGR2HSV);

		split(hsv, channels);

		dstH = channels[0] * (510/360);
		dstS = channels[1];
		dstV = channels[2];

		imshow("h", dstH);
		imshow("v", dstV);
		imshow("s", dstS);

		imshow("hsv", hsv);
		//waitKey();

		int HistH[256] = { 0 };

		for (int i = 0; i < dstH.rows; i++){
			for (int j = 0; j < dstH.cols; j++){
				uchar u = dstH.at<uchar>(i, j);
				HistH[u]++;
			}
		}
		int HistS[256] = { 0 };

		for (int i = 0; i < dstS.rows; i++){
			for (int j = 0; j < dstS.cols; j++){
				uchar u = dstS.at<uchar>(i, j);
				HistS[u]++;
			}
		}
		int HistV[256] = { 0 };

		for (int i = 0; i < dstV.rows; i++){
			for (int j = 0; j < dstV.cols; j++){
				uchar u = dstV.at<uchar>(i, j);
				HistV[u]++;
			}
		}

		showHistogram("histh", HistH, 256, 256, true);
		showHistogram("hists", HistS, 256, 256, true);
		showHistogram("histv", HistV, 256, 256, true);

		Mat binarizare= dstH.clone();
		for (int i = 0; i < dstH.rows; i++){
			for (int j = 0; j < dstH.cols; j++){
				float t = channels[0].at<uchar>(i,j);
				if (t < 30)
					binarizare.at<uchar>(i, j) = 255;
				else
					binarizare.at<uchar>(i, j) = 0;
			}
		}


		imshow("imgbinarizata", binarizare);
		waitKey();
	}
}