使用opencv3 生成棋盘格图片源码

#include <opencv.hpp>

using namespace cv;

Mat img(630,891,CV_8UC1,Scalar::all(0));//初始化img矩阵，全黑

int cube = 90;
for(int j = 0;j<img.rows;j++)
{
uchar *data =img.ptr<uchar>(j);
for(int i=0;i<img.cols;i+=1)
{
if((i/cube+j/cube)%2)//符合此规律的像素，置255
{
data[i] = 255;

}
}
}
imshow("img",img);
imwrite("board.jpg",img);//保存图片到默认路径
waitKey(0);