#include<opencv2\/opencv.hpp>
#include<iostream>
#include<math.h>
using namespace cv;
int main(int argc, char** argv){
Mat src, dst;
src = imread("E:/python image /15.jpg");
if (!src.data){
printf("could not load image...\n");
return -1;
}
namedWindow("input image",CV_WINDOW_AUTOSIZE);
imshow("input image", src);
Mat kernel = (Mat_<char>(3, 3) << 0, -1, 0, -1, 5, -1, 0, -1, 0);
filter2D(src, dst,-1, kernel);
namedWindow("contrast image demo", CV_WINDOW_AUTOSIZE);
imshow("contrast image demo",dst);
waitKey(0);
return 0;
}
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