摄像机的标定、角点的提取、三维空间的重建、最后生成矫正后无畸变的图形-Camera Calibration，This section takes you through a complete calibration example based on a total of 20 (and 25) images of a planar checkerboard. This example lets you learn how to use all the features of the tool

利用照相机或已有图像文件进行图像校准，获取照相机（摄像头）的distortion matrix和camera matrix-Use data from camera or existing image files for camera calibration. Get the camera matrix and distortion matrix of the camera