%?This?Matlab?file?demomstrates?a?level?set?algorithm?based?on?Chunming?Li?et?al‘s?paper:
%?“Implicit?Active?Contours?Driven?By?Local?Binary?Fitting?Energy“?in?Proceedings?of?CVPR‘07


clc;clear?all;close?all;
c0?=2;
imgID=2;

Img=imread（‘vessel3.bmp‘）;
%Img=imread（‘vessel2.bmp‘）;??%?uncommont?this?line?to?use?ther?other?vessel?image
I=Img（::1）;
Img=double（Img）;

switch?imgID
?????case?1
???????phi=?ones（size（Img（::1）））.*c0;
???????a=43;b=51;c=20;d=28;
???????phi（a:bc:d）?=?-c0;
???????figure;
???????imshow（I）;colormap;
???????hold?on;
???????plotLevelSet（phi?0?‘g‘）;
???????hold?off;
????case?2
???????[mn]=size（Img（::1））;
???????a=m/2;?b=n/2;r=5;
???????phi=?ones（mn）.*c0;
???????phi（a-r:a+rb-r:b+r）?=?-c0;
???????imshow（I）;colormap;
???????hold?on;
???????plotLevelSet（phi?0?‘r‘）;
???????hold?off;
????case?3
???????figure;imagesc（Img?[0?255]）;colormap（gray）;hold?on;?axis?off;axis?equal;
???????text（66‘Left?click?to?get?points?right?clic

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2011-03-17?15:50??LBF（Matlab）\
?????文件????????2117??2011-03-17?15:49??LBF（Matlab）\DemoLBF.m
?????文件????????1689??2011-03-17?15:49??LBF（Matlab）\EVOL_LBF.m
?????文件???????30654??2008-12-17?10:21??LBF（Matlab）\I5.bmp
?????文件???????20338??2007-08-08?23:31??LBF（Matlab）\mri_nonuniform.bmp
?????文件????????7078??2007-08-16?17:13??LBF（Matlab）\noisyNonUniform.bmp
?????文件?????????337??2005-10-08?14:18??LBF（Matlab）\plotLevelSet.m
?????文件???????13398??2007-08-16?17:46??LBF（Matlab）\vessel2.bmp
?????文件???????14702??2007-08-16?17:03??LBF（Matlab）\vessel3.bmp
?????文件????????1162??2008-04-02?11:29??LBF（Matlab）\灰度不均.jpg