opencv：边缘提取

#include <opencv2/opencv.hpp>

#include <iostream>

using namespace cv;

using namespace std;

int t1 = 50;

Mat src;

void canny_demo(int, void*) {

    Mat edges;

    Canny(src, edges, t1, t1 * 3, 3, false);

    imshow("edges", edges);

}

int main(int argc, char** argv)

{

    src = imread("f:/images/lena.jpg");

    if (src.empty())

    {

        printf("Could not find the image!\n");

        return -1;

    }

    namedWindow("input", WINDOW_AUTOSIZE);

    imshow("input", src);

    // Canny Demo

    createTrackbar("threshold value:", "input", &t1, 100, canny_demo);

    canny_demo(0, 0);

    waitKey(0);

    destroyAllWindows();

    return 0;

}

巴特西

opencv：边缘提取

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