%?This?Matlab?file?demomstrates?a?segmentation?method?in?Qiang?Zheng?et?al‘s?paper
%????“Graph?Cuts?based?Active?Contour?Model?with?Selective?Local?or?Global?Segmentation“
%????IET?Electronics?Letters?vol.?48?（9）?pp.490-491?26th?April?2012.
%?Author:?Qiang?Zheng?all?rights?reserved
%?E-mail:?weihaizhengqiang@163.com
%?URL:??%%%%%%%%%%%%%%%

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clc;?clear?all;?close?all;?

Img0?=?imread（‘1.bmp‘）;
Img0?=?double（Img0（::1））;

[heightwidth]?=?size（Img0）;
N?=?height*width;

E?=?edges4connected（heightwidth）;
V0?=?1./（1?+?abs（Img0（E（:1））?-?Img0（E（:2）））.^2?+?eps）;

iterNum?=?5;?%?迭代次數(shù)
figure（1）;

for?ID=1:6
????
????[nrowncol]?=?size（Img0）;
????BW_InitialCurve?=?zeros（size（Img0））;
????switch?ID
????????case?1??????%?Global?segmentation?with?initialCurve_1
????????????%?初始化
????????????BW_InitialCurve（15:14015:140）?=?1;
????????????subplot（341）;?imagesc（Img0）;colormap（gray）;title（‘case1-initialization‘）;hold?on;
????????????[ch]?=?contour（BW_InitialCurve[0?0]‘r‘‘LineWidth‘3）;
????????????
????????????%?曲線進(jìn)化
????????????BW_Result?=?Evolution_Global（BW_InitialCurve?Img0?E?V0?iterNum）;
????????????subplot（342）;?imagesc（Img0）;colormap（gray）;title（‘case1-global-segmentation‘）;hold?on;
????????????[ch]?=?contour（BW_Result[0?0]‘r‘‘LineWidth‘3）;
????????????
????????case?2??????%?Global?segmentation?with?initialCurve_2
????????????%?初始化
????????????BW_InitialCurve（100:14010:30）?=?1;
????????????subplot（345）;?imagesc（Img0）;colormap（gray）;title（‘case2-initialization‘）;hold?on;
????????????[ch]?=?contour（BW_InitialCurve[0?0]‘r‘‘LineWidth‘3）;
????????????
????????????%?曲線進(jìn)化
????????????BW_Result?=?Evolution_Global（BW_InitialCurve?Img0?E?V0?iterNum）;
????????????subplot（346）;?imagesc（Img0）;colormap（gray）;title（‘case2-global-segmentation‘）;hold?on;
????????????[ch]?=?contour（BW_Result[0?0]‘r‘‘LineWidth‘3）;
????????????
????????case?3??????%?Global?segmentation?with?initialCurve_3
????????????%?初始化
????????????BW_InitialCurve（50:10050:100）?=?1;?????
????????????subplot（349）;?imagesc（Img0）;colormap（gray）;title（‘case3-initialization‘）;hold?on;
????????????[ch]?=?contour（BW_InitialCurve[0?0]‘r‘‘LineWidth‘3）;
????????????
????????????%?曲線進(jìn)化
????????????BW_Result?=?Evolution_Global（BW_InitialCurve?Img0?E?V0?iterNum）;
????????????subplot（3410）;?imagesc（Img0）;colormap（gray）;title（‘case3-global-segmentation‘）;hold?on;
????????????[ch]?=?contour（BW_Result[0?0]‘r‘‘LineWidth‘3）;???????????
????????????
????????case?4??????%?Local?segmentation?with?initialCurve_4????????%環(huán)狀物局部分割
????????????%?初始化
????????????ic?=?50;????jc?=?50;????r?=?15;
????????????[XY]?=?meshgrid（1:ncol?1:nrow）;
????????????f?=?sqrt（（X?-?jc）.^2?+?（Y?-?ic）.^2）?-?r;
????????????BW_InitialCurve?=?sign（f）;?
????????????BW_InitialCurve?=?1?-?sign（BW_InitialCurve?+?1）;
????????????subplot（3

?屬性????????????大小?????日期????時間???名稱
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?????文件??????69366??2006-11-12?20:57??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\1.bmp

?????文件??????20520??2012-04-17?16:53??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Demo.asv

?????文件???????5384??2012-08-03?16:58??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Demo.m

?????文件????????765??2008-09-15?15:35??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\edges4connected.m

?????文件???????1026??2012-04-17?16:43??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Evolution_Global.asv

?????文件???????1138??2012-04-17?16:58??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Evolution_Global.m

?????文件???????1127??2012-04-17?16:58??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Evolution_Local_Annular.asv

?????文件???????1182??2012-04-17?16:58??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Evolution_Local_Annular.m

?????文件???????1171??2012-04-17?17:00??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Evolution_Local_Non_Annular.m

?????文件?????377164??2012-05-07?10:15??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentation.pdf

?????文件???????1458??2008-09-15?15:35??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\maxflow.m

?????文件??????24576??2011-12-03?21:22??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\maxflowmex.mexw32

?????文件????????245??2008-09-02?17:10??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\make.m

?????文件???????7466??2006-11-07?18:56??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\block.h

?????文件???????1166??2006-11-07?21:01??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\CHANGES.TXT

?????文件???????3031??2008-01-03?22:58??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\graph.cpp

?????文件??????17825??2011-12-03?21:21??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\graph.h

?????文件????????410??2006-06-13?19:42??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\instances.inc

?????文件??????17657??2008-01-03?23:22??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\maxflow.cpp

?????文件???????4430??2006-11-06?18:39??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0\README.TXT

?????文件???????4679??2008-09-15?15:35??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflowmex.cpp

?????目錄??????????0??2012-08-03?16:59??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow\maxflow-v3.0

?????目錄??????????0??2012-08-03?16:59??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio\Source?Code?for?maxflow

?????目錄??????????0??2012-10-22?20:50??Graph?cuts?based?active?contour?model?with?selective?local?or?global?segmentatio

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???????????????561786????????????????????24