opencv角点检测

#include "opencv2/opencv.hpp"
#include <iostream>

using namespace cv;
using namespace std;
//全局变量


int main()
{
    Mat src_image ;
    Mat gray_image ;
    VideoCapture vidcap(0);

    vector<Point2f> conners;//检测到的角点
    int maxConers = 300;//检测角点上限
    double qualityLevel = 0.1;//最小特征值
    double minDistance = 10;//最小距离

    while (true)
    {
        vidcap >> src_image;

        cvtColor( src_image, gray_image, CV_BGR2GRAY);//转换为灰度图

        //Shi-Tomasi角点检测
        goodFeaturesToTrack( gray_image, conners, maxConers, qualityLevel, minDistance);

        //cout<<"检测到的角点坐标："<<conners<<endl;

        //角点绘制
        for (int i = 0; i < conners.size(); i++)
        {
            circle( src_image, conners[i], 3, Scalar(255&rand(),255&rand(),255&rand()), 2, 8, 0);
        }

        imshow( "角点检测", src_image );
        waitKey(10);
    }


    return 0;
}