最近在学习相机标定，涉及到角点检测，自己写了一个使用C++版本的Opencv棋盘格检测角点的程序。
话不多说，直接上代码。

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

using namespace cv;
using namespace std;
int main() {
	int w = 9;
	int h = 6;
	Size boardSize(8, 5);  //对于不同的棋盘格，需要更改这个参数，否则将检测不到角点
	cout << "Start of test" << endl;
	//Mat img = imread("left01.jpg", cv::IMREAD_GRAYSCALE);
	Mat img = imread(".jpg", cv::IMREAD_GRAYSCALE);  //将图片名改为你的图片明

	if (img.empty()) {
		return -1;
	}
	cout << "rows" << img.rows << endl;
	vector<Point2f> corners;
	//bool found = findChessboardCorners(img, boardSize, corners);
	bool found = cv::findChessboardCorners(img, boardSize, corners, cv::CALIB_CB_ADAPTIVE_THRESH | cv::CALIB_CB_FAST_CHECK | cv::CALIB_CB_NORMALIZE_IMAGE);
	cout << "End of test" << endl;
	cout << found << endl;
	if (found) {
		drawChessboardCorners(img, boardSize, corners, found);
		namedWindow("chessboard", WINDOW_NORMAL);
		imshow("chessboard", img);
		waitKey(0);
	}
}