c++

#include"all.h"
using namespace std;
using namespace cv;

void MyClass::day033() {
    Mat img = read(PATH + "images\\test.jpg");
    imshow("input", img);

    Mat dst, blured;
    GaussianBlur(img, blured, Size(3, 3), 0);
    imshow("GuassianBlured", blured);

    Laplacian(blured, dst, CV_32F, 1, 1.0, 127.0, BORDER_DEFAULT);
    convertScaleAbs(dst, dst);

    imshow("result", dst);

    waitKey(0);
}

c++中新知识点：
Laplacian():实现Laplacian梯度挖掘，此处用该方法挖掘GaussianBlur模糊后的图像的梯度。