机器视觉相关，张正友的棋盘格靶标有时不方便，可换成圆形靶标。程序是在matlab下利用重心法编写的圆靶标中心点提取算法-Machine vision, Zhang Zhengyou checkerboard target sometimes inconvenient, can be replaced by a circular target. Program is written in the center of gravity method matlab center of a circle