一个opencv的试运行例子，花费了三天的时间-A trial run of opencv example, spent three days

This is sample from opencv. Intorduce us how to calibrate camera.

可以直接使用Opencv自带的摄像机标定示例程序，该程序位于 “\OpenCV\samples\c目录下的calibration.cpp”，程序的输入支持直接从USB摄像机读取图片标定，或者读取avi文件或者已经存放于电脑上图片进行标定。-Can directly use Opencv s own camera calibration sample program, the program is located in the directory \ Opencv \ samples \ c c