opencv 高反差保留算法

Mat HighPass(Mat img) { Mat temp; //GaussianBlur(img, temp, Size(3, 3), 1.6, 1.6); medianBlur(img, temp, 3);

int r = 10;
Mat diff =  r * (img - temp); //高反差保留算法
return diff;

} #include #include //#include #include #include using namespace cv; using namespace cv::ml;

Mat HighPass(Mat img) { Mat temp; GaussianBlur(img, temp, Size(3, 3), 1.6, 1.6); //medianBlur(img, temp, 3);

int r = 10;
Mat diff = r * (img - temp); //高反差保留算法
return diff;

}

void main() { Mat src = imread(“d:/dong.jpg”);

//Mat dst = Mat::zeros(src.size(), CV_8UC3);

Mat dst = HighPass(src);
imshow("ori", src);
medianBlur(dst, dst, 3);
imshow("res", dst);
Mat gray,gray1;
cvtColor(dst, gray, COLOR_BGR2GRAY);
//threshold(gray, gray1, 50, 255, cv::THRESH_BINARY_INV);
imshow("res1", gray1);

cv::waitKey(0);

}

//留下了一副粉笔画。