<opencv>第五课 Canny边缘

void cv::Canny(InputArray image, OutputArray edges, double threshold1, double threshold2, int apertureSize = 3, bool L2gradient = false)

使用 Canny 算法在图像中查找边缘。

#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/imgproc.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main()
{
    string path = "../lesson1_pictureRead/img1.jpg";
    Mat img = imread(path);
    Mat imgBlur,imgCanny;
    GaussianBlur(img, imgBlur, Size(3, 3), 3, 0); //高斯模糊
    Canny(imgBlur, imgCanny, 75, 125); //边缘检测
    imshow("Image", img);
    imshow("ImageCanny", imgCanny);
    waitKey(0);
    return 0;
}