Opencv学习笔记 ---opencv生成摄像头标定棋盘

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由于3D重建跟双目视觉的需要，
对标定棋盘图的生成C++代码如下（只需修改棋盘的角点数x、y即可改变棋盘大小）：

Opencv 1.x版本:

#include <cv.h>  #include <highgui.h>  void main(){int y = 6;//所生成的棋盘格的角点个数yint x = 4;//所生成的棋盘格的角点个数x IplImage *img;int cube = 150;        //棋盘格大小，像素为单位 int dy = y + 1;       //棋盘格数目dyint dx = x + 1;   //棋盘格数目dximg = cvCreateImage(cvSize(dy * cube,dx * cube), IPL_DEPTH_8U, 1);//初始化图像for (int i = 0; i< dx; i++)for (int j = 0; j< dy; j++){for (int m = i*cube; m<(i + 1)*cube; m++)for (int n = j*cube; n<(j + 1)*cube; n++)((uchar *)(img->imageData + m * img->widthStep))[n] = 255;//*(img->imageData+m*img->widthStep+n)=255;  }//绘画棋盘格int flag = 0;for (int i = 0; i< dx; i++)for (int j = 0; j< dy; j++){flag = (i + j) % 2;if (flag == 0){for (int m = i*cube; m<(i + 1)*cube; m++)for (int n = j*cube; n<(j + 1)*cube; n++)((uchar *)(img->imageData + m * img->widthStep))[n] = 0;//*(img->imageData+m*img->widthStep+n)=255;  }}//生成标定图//cvSaveImage("ChessBoard.bmp", img);cvNamedWindow("ChessBoard", 1);cvShowImage("ChessBoard", img);cvWaitKey(0);cvReleaseImage(&img);cvDestroyWindow("ChessBoard");}

Opencv 2.x版本:(可以根据需要自己调节角点个数)

#include <opencv2\highgui\highgui.hpp>#include <opencv2\opencv.hpp>using namespace cv;using namespace std;int main(int argc,char* argv[]){//A4纸大小  cols*rows = 630*891Mat img(630, 891, CV_8UC1, Scalar::all(0));int channel = img.channels();int cube = 90;for (int j = 0; j<img.rows; j++){uchar* data = img.ptr<uchar>(j);for (int i = 0; i<img.cols*channel; i += channel){if ((i / channel / cube + j / cube) % 2){data[i / channel*channel + 0] = 255;data[i / channel*channel + 1] = 255;data[i / channel*channel + 2] = 255;}}}imshow("img", img);imwrite("board.jpg", img);waitKey(0);return 0;}

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