function?[bdybdx]=backward_gradient（f）;
%?function?[bdxbdy]=backward_gradient（f）;
%??
%???created?on?04/26/2004
%???author:?Chunming?Li
%???email:?li_chunming@hotmail.com
%???Copyright?（c）?2004-2006?by?Chunming?Li
[nrnc]=size（f）;
bdx=zeros（nrnc）;
bdy=zeros（nrnc）;

bdx（2:nr:）=f（2:nr:）-f（1:nr-1:）;
bdy（:2:nc）=f（:2:nc）-f（:1:nc-1）;

?屬性????????????大小?????日期????時(shí)間???名稱
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?????文件????????281??2005-10-08?14:16??水平集C-V模型\Heaviside.m

?????文件????????337??2005-10-08?14:18??水平集C-V模型\plotLevelSet.m

?????文件????????588??2005-10-08?14:28??水平集C-V模型\sdf2circle.m

?????文件????????689??2005-10-08?14:22??水平集C-V模型\signed_distance.m

?????文件???????1198??2008-10-31?20:52??水平集C-V模型\test.m

?????文件??????11766??2004-06-09?12:07??水平集C-V模型\three.bmp

?????文件??????16434??2004-07-23?20:36??水平集C-V模型\twocells.bmp

?????文件??????14286??2005-07-25?15:45??水平集C-V模型\vessel.bmp

?????文件????????351??2005-10-08?14:15??水平集C-V模型\backward_gradient.m

?????文件????????787??2005-10-08?14:14??水平集C-V模型\binaryfit.m

?????文件????????383??2008-10-22?09:26??水平集C-V模型\BoundMirrorEnsure.m

?????文件????????316??2008-10-22?09:10??水平集C-V模型\BoundMirrorExpand.m

?????文件?????????90??2003-12-22?19:36??水平集C-V模型\BoundMirrorShrink.m

?????文件????????791??2005-10-08?14:02??水平集C-V模型\curvature.m

?????文件????????280??2005-10-08?14:16??水平集C-V模型\Delta.m

?????文件???????1195??2008-10-28?19:01??水平集C-V模型\evolution_cv.m

?????文件????????367??2005-10-08?14:15??水平集C-V模型\forward_gradient.m

?????文件????????711??2004-10-08?12:52??水平集C-V模型\get_contour.m

?????目錄??????????0??2008-10-21?11:36??水平集C-V模型

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????????????????50850????????????????????19