void testFunc(bool flag){
	cv::Size testSize = cv::Size(500, 500);
	cv::Mat testMat = cv::Mat::zeros(testSize, CV_32F);
	cout << testMat.cols << endl;
	cout << testMat.rows << endl;
	for (int i = 0; i < testMat.cols; i++){
		for (int j = 0; j < testMat.rows; j++){
			if (flag){
				testMat.at<float>(j, i) = ((float)i + (float)j*500.0f) / (float)testSize.area();
			}
			else{
				if (50 < i && i < 300 && 50 < j && j < 300){
					testMat.at<float>(j, i) = ((float)i + (float)j*500.0f) / (float)testSize.area();
				}
				else{
					testMat.at<float>(j, i) = 0.0f;
				}
			}
		}
	}
	cv::imshow("testmat",testMat);
	// 1行のArrayにする
	cv::Mat testArray = testMat.reshape(1, 1);
	cv::Mat testScoreIndices;
	cv::sortIdx(testArray, testScoreIndices, SORT_EVERY_ROW + SORT_DESCENDING);


	cv::Mat imgScore = cv::Mat::zeros(testSize, CV_8U);
	int channel_num = 1;
	int stride = testSize.width * channel_num;
	int threshold = testScoreIndices.cols * 0.2;
	cout << threshold << endl;
	for (int Y = 0; Y < testSize.height; Y++){
		for (int X = 0; X < testSize.width; X++){
			int CHANNEL = 0;
			int *scoreIndex = (int *)testScoreIndices.data;
			if (scoreIndex[Y * stride + X * channel_num + CHANNEL] <= threshold){
				imgScore.at<unsigned char>(Y, X) = 255;
			}
		}
	}
	cv::imshow("score", imgScore);

	cv::waitKey(0);
}