中文说明：分水岭算法后，会出现过分割现象，这就需要进行区域合并，而进行区域合并前很重要的事计算RAG（区域连接图），区域邻接图的合并规则，在进行区域合并时可以使用，希望对大家有用-region merging for region adjecent gragh，might it be help for you.
English Description：
After the watershed occurs over-segmentation, which need to be merged, zone very important calculation prior to the merger and RAG (connections), region adjacency graph merge rules in the region can be used, the hope that useful-region merging for region adjecent gragh,might it be help for you.