Mat src= imread( "D:\OCR\Debug\Temp\Rects\wholeMat_00191_0_0.jpg"); Mat dest; Mat kern = (Mat_<char>(3,3) << 0, -1 ,0, -1, 5, -1, 0, -1, 0); filter2D(src,dest,src.depth(),kern); imshow("src",src); imshow("dest",dest); imwrite("D:\dest.jpg",dest); waitKey(0);
可以实现图像增强,处理过后图像大小增大30%