opencv就这么简单, 就这么任性

Posted 2020-10-05 Montauk

#include <opencv2/opencv.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>

using namespace cv;

#if 0
//腐蚀
int main() {
    Mat srcImage = imread("C:\\\\pics\\\\index.jpg");
    imshow("srcpic", srcImage);
    Mat element = getStructuringElement(MORPH_RECT, Size(15, 15));
    Mat dstImage;
    erode(srcImage, dstImage, element);
    imshow("dstpic", dstImage);
    waitKey(0);

    return 0;
}

#endif

#if 0
int main() {
    Mat srcImage = imread("C:\\\\pics\\\\index.jpg");
    imshow("均值滤波[原图]", srcImage);

    Mat dstImage;
    blur(srcImage, dstImage, Size(7, 7));
    imshow("均值滤波[效果图]", dstImage);

    waitKey(0);


}



int main() {
    Mat srcImage = imread("C:\\\\pics\\\\index.jpg");
    imshow("均值滤波[原图]", srcImage);

    Mat edge,grayImage;
    cvtColor(srcImage, grayImage, CV_BGR2GRAY);

    blur(grayImage, edge, Size(3, 3));

    Canny(edge, edge, 3, 9, 3);
    imshow("均值滤波[效果图1]", edge);

    Canny(edge, edge, 5, 9, 3);
    imshow("均值滤波[效果图2]", edge);

    waitKey(0);


}

#endif

int main() {
    VideoCapture capture(1);
    Mat edges;
    while (1) {
        Mat frame;
        capture >> frame;

        cvtColor(frame, edges, COLOR_BGR2GRAY);
        blur(edges, edges, Size(7, 7));
        Canny(edges, edges, 0, 30, 3);
        imshow("canny后的视频", edges);
        if (waitKey(30) >= 0) break;
    
    }

    return 0;
}