该程序将检测圆进行扩展，首先获取感兴趣区，并保存，之后利用opencv提供的cvHoughCircles（）对各个ROI区域进行圆检测，并将检测到的结果进行保存，可以运行。-this codes are set to detest circles in your image,you can get several ROI and operate in these ROI by cvHoughCircles（）which is provided by opencv.