相机标定黑白格纸生成（提供PDF版下载）

I=checkerboard(100);
figure,imshow(I>0.5)
imwrite((I>0.5),'calibration');

function M = writeChessBoard( width, height, size, xnum, ynum, position, background)
% This function writes a chessboard on image.
% 该方程创建一个棋盘格图像。
%参数解释：
%   width： 宽度
%   height：高度
%   size：单个小方块的大小
%   xum：x方向上的个数（每4个小方块一组）
%   xum：x方向上的个数（每4个小方块一组）
%   position：起始位置的坐标（为了留出边，便于打印）
%   background：背景亮度， 0<=background<=1， 0表示纯黑，1表示纯白
 
    M=ones(width,height);
    M(:)=background;
    block=size*2;
    for i=1:xnum,
        for j=1:ynum,
            pos=[position(1)+block*(i-1), position(2)+block*(j-1)];
            M=ChessBoard(M,size,pos);
        end
    end    
end

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

//行数
#define x 9
//列数
#define y 9
//格子大小
#define size 100

int main()
{
    IplImage* image = cvCreateImage(cvSize(x*size, y*size), 8, 1);
    ///生成黑白条
    for (int i = 0; i<image->height; i++)
    {
        uchar* data = (uchar*)image->imageData + image->widthStep*i;
        for (int j = 0; j<image->width; j++)
        {
            if ((j / size) % 2 == 1)
                *data = 255;//白色
            else
                *data = 0;//黑色
            data++;
        }
    }
    //生成棋盘格
    for (int i = 0; i<image->height; i++)
    {
        if ((i / size) % 2 == 1)
        {
            uchar* data = (uchar*)image->imageData + image->widthStep*i;
            for (int j = 0; j<image->width; j++)
            {
                *data = 255 - *data;
                data++;
            }
        }
    }
    cvShowImage("image",image);
    cvWaitKey();
    cvSaveImage("chessboard.jpg", image);
}

/*
作者：lwqbrell 
来源：CSDN 
原文：https://blog.csdn.net/lwqBrell/article/details/70880670?utm_source=copy 
*/

#include "opencv2/core/core.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/calib3d/calib3d.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <iostream>
 
using namespace cv;
using namespace std; 
 
int main()
{
    Size ImageSize = Size(960, 1260);
    Mat src(ImageSize.width,ImageSize.height,CV_8UC1,Scalar(0));
    namedWindow("src", CV_WINDOW_NORMAL);
    imshow("src", src);
 
    int width = 140;
    int height = 140;
    for (int i = 0; i < src.rows; i++)
    {
        for (int j = 0; j < src.cols; j++)
        {
            if ((i / width + j / height)%2 != 0)
            {
                src.at<uchar>(i, j) = 255;
            }
            else
            {
                src.at<uchar>(i, j) = 0;
            }
        }
    }
    namedWindow("result", CV_WINDOW_NORMAL);
    imshow("result", src);
    imwrite("result.bmp", src);
    waitKey(0);
    return 0; 
}