实战深度学习OpenCV(三)：视频实时canny边缘检测

#include <stdio.h>
#include"opencv2/opencv.hpp"  
using namespace cv;


int main()
{
    VideoCapture a(0);
    Mat edge;
    while (1)
    {
        Mat frame;
        a >> frame;
        cvtColor(frame,edge,CV_BGR2GRAY);
        blur(edge,edge,Size(7,7));
        Canny(edge, edge, 0, 30, 3);
        imshow("被canny后的视频",edge);
        waitKey(2);


    }
    return 0;
}