opencv学习笔记6 角点检测

角点检测

1.harris焦点检测

void cornerHarris(InputArray src,OutputArray dst, int blockSize, int ksize, double k, intborderType=BORDER_DEFAULT )

 

    Mat src = imread("E:/house.png", 0);
    Mat harris,harris_bin;
    cornerHarris(src, harris, 2, 3, 0.01);
    threshold(harris, harris_bin, 0.00001, 255, THRESH_BINARY);
    imshow("src", src);
    imshow("角点检测后的二值效果图", harris_bin);
    waitKey();

 

 2.阈值（用于生成二值图）

double threshold(InputArray src,OutputArray dst, double thresh, double maxval, int type)

#include<opencv.hpp>
#include<vector>
using namespace std;
using namespace cv;
int main()
{
    Mat src = imread("E:/test.jpg",0);
    imshow("src", src);
    Mat thresh_bin;
    threshold(src, thresh_bin, 127, 255, THRESH_BINARY); //阈值127
    imshow("thresh_bin", thresh_bin);
    Mat thresh_bin_inv;
    threshold(src, thresh_bin_inv, 127, 255, THRESH_BINARY_INV);
    imshow("thresh_bin_inv", thresh_bin_inv);
    waitKey();
    return 0;
}