31 lines
659 B
C++
31 lines
659 B
C++
#include <iostream>
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#include "opencv2/opencv.hpp"
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using namespace std;
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using namespace cv;
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void unsharp_mask() {
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Mat src = imread("..\\..\\resources\\images\\rose.bmp", IMREAD_GRAYSCALE);
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imshow("src", src);
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for (int sigma = 1; sigma <= 5; sigma++) {
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Mat blurred;
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GaussianBlur(src, blurred, Size(), (double)sigma);
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constexpr float alpha = 1.f;
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Mat dst = (1 + alpha) * src - alpha * blurred;
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string text = format("sigma = %d", sigma);
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putText(dst, text, Point(10, 30), FONT_HERSHEY_SIMPLEX, 1.0, Scalar(255), 1, LINE_AA);
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imshow(text, dst);
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waitKey(0);
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}
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destroyAllWindows();
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}
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int main() {
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unsharp_mask();
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return EXIT_SUCCESS;
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} |