chessboard

int n_cols = 4;   // 角点行的个数int n_rows = 6;   //角点列的个数int n_pix = 100;  //每一个块的像素int col = n_pix * (n_cols + 1);   // 生成标定图的列int row = n_pix * (n_rows + 1);  //生成标定图的行Mat map = Mat(row, col, CV_8UC1, Scalar::all(0));  //初始化将所有的像素设为0for (int i = 0; i < row; i++) {                     // 遍历所有像素点for (int j = 0; j < col; j++) {if (int(i / n_pix) % 2 == 0) {             //如果是奇数行if (int(j / n_pix) % 2 != 0) {map.at<Vec3b>(i, j)[0] = 255;map.at<Vec3b>(i, j)[1] = 255;map.at<Vec3b>(i, j)[2] = 255;}}if (int(i / n_pix) % 2 != 0) {            //如果是偶数行if (int(j / n_pix) % 2 == 0) {map.at<Vec3b>(i, j)[0] = 255;map.at<Vec3b>(i, j)[1] = 255;map.at<Vec3b>(i, j)[2] = 255;}}}}imshow("1", map);waitKey();

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