分水岭分割方法，是一种基于拓扑理论的数学形态学的分割方法，其基本思想是把图像看作是测地学上的拓扑地貌，图像中每一点像素的灰度值表示该点的海拔高度，每一个局部极小值及其影响区域称为集水盆，而集水盆的边界则形成分水岭。-Watershed segmentation method is a mathematical morphology segmentation method based on topological theory, the basic idea is the image seen on the topology of geodesy geomorphology, each point in the image pixel gray value represents the altitude of the point, the boundaries of each local minimum value and its impact area is called the collection basin and catchment basins of the formation of the watershed.