Image segmentation is a key process of image recognition.Relaxation iteration algorithm and K-means cluster algorithm are used to resolve the stomach epidermis tumor segmentation,but some conglutinated cells cannot be separated by others.So the Vincent watershed algorithm and the Inver watershed algorithm are designed to conduct segmentation experiments about the stomach epidermis tumor.A lot of experiments about several kinds stomach epidermis tumor are done to build the segmentation theory.The conclusion ...