区域生长是根据事先定义的准则将像素或者子区域聚合更大区域的过程。步骤：选择合适的生长点；确定相似性准则即生长准则；确定生长停止条件。该程序以处理二值化图像编写-Regional growth is based on pre-defined criteria or sub-pixel area larger area polymerization process. Steps: Select the appropriate growing point　similarity criteria that determine the growth criterion　determined to stop the growth conditions. The procedure to handle binary image writing.