本例使用了opencv中图像数据结构IplImage ：首先进行第一次扫描，标记连通区域；然后对等价标记进行合并，最后进行第二次扫描，对等价标记进行重新标记。-This example uses a data structure of the opencv: IplImage. First, scan for the first time, marking connected region then mark the merger of the equivalence, and final

代码设计了可以用来存图像轮廓的数据结构。类的设计。类似与OPENCV的设计方案-The code design can be used to save image outline of data structure. The design of the class. Similar and OPENCV design scheme