void Bfs() {

	Mat src, dst, labels;
	src = imread("Images/shapes.bmp", CV_LOAD_IMAGE_GRAYSCALE);
	labels = Mat::zeros(src.rows, src.cols, CV_8UC1);
	dst = Mat::zeros(src.rows, src.cols, CV_8UC3);
	int label = 0;

	for (int i = 0; i < src.rows; i++)
		for (int j = 0; j < src.cols; j++)
			if (src.at<uchar>(i, j) == 0 && labels.at<uchar>(i, j) == 0)
			{
				label++;
				std::queue<Point2i> Q;
				labels.at<uchar>(i, j) = label;
				Q.push(Point2i(j, i));
				while (!Q.empty())
				{
					Point2i qu = Q.front();
					Q.pop();
					int di[8] = { -1, -1, -1, 0, 0, 1, 1, 1 };
					int dj[8] = { -1, 0, 1, -1, 1, -1, 0, 1 };
					for (int k = 0; k < 8; k++)
					{
						int w = qu.y + di[k];
						int h = qu.x + dj[k];
						if (src.at<uchar>(w, h) == 0 && labels.at<uchar>(w, h) == 0)
						{
							labels.at<uchar>(w, h) = label;
							Q.push(Point2i(h, w));
						}
					}
				}
			}

	Vec3b colors;

	for (int i = 0; i <= label; i++)
	{

		colors = Vec3b(rand() % 256, rand() % 256, rand() % 256);

		for (int j = 0; j < src.rows; j++)
			for (int k = 0; k < src.cols; k++)
				if (labels.at<uchar>(j, k) == i)
					if (i == 0)
					{
						dst.at<Vec3b>(j, k) = Vec3b(255, 255, 255);
					}
					else
					{
						dst.at<Vec3b>(j, k) = colors;
					}
	}
	imshow("Initial", src);
	imshow("Final", dst);
	waitKey(0);

}