%MatladcodeimplementingChan-Vesemodelinthepaper'ActiveContoursWithoutEdges'%Thismethodworkswellforbimodalimages,forexampletheimage'three.bmp'%createdon04/26/2004%author:ChunmingLi%email:li_chunming@hotmail.com%Copyright(c)2004-2006byChunmingLi