f=imread（‘circuit.tif‘）;
subplot（221）;imshow（f）;title（‘原圖像‘）
seedx=[307686];
seedy=[11028110];
%選擇了3個種子點
hold?on
plot（seedxseedy‘gs‘‘linewidth‘1）;
title（‘原始圖像及種子點位置‘）;
f=double（f）;
markerim=f==f（seedy（1）seedx（1））;
for?i=2:length（seedx）
????markerim=markerim|（f==f（seedy（i）seedx（i）））;
end
thresh=[12612];
%3個種子點的閾值
maskim=zeros（size（f））;
for?i=1:length（seedx）
????g=abs（f-f（seedy（i）seedx（i）））<=thresh（i）;
????maskim=maskim|g;
end
[gnr]=bwlabel（imreconstruct（markerimmaskim）8）;
g=mat2gray（g）;
subplot（222）;imshow（g）;title（‘三個種子生長結果圖像‘）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????171??2008-09-05?14:59??test1\track1.m

?????文件????????148??2008-09-05?14:56??test1\track1.asv

?????文件???????1599??2008-09-05?15:27??test1\boundary_trace.m

?????文件???????1579??2008-09-05?15:26??test1\boundary_trace.asv

?????文件???????8382??2008-09-05?15:24??test1\border.bmp

?????文件????????378??2008-09-09?16:32??test1\track2.m

?????文件????????374??2008-09-09?16:29??test1\track2.asv

?????文件???????1649??2008-09-09?17:21??test1\boundary_trace2.m

?????文件???????1652??2008-09-09?16:49??test1\boundary_trace2.asv

?????文件???????8522??2008-10-13?09:36??test1\border2.bmp

?????文件??????62178??2008-09-09?16:31??test1\ellipse.bmp

?????文件??????17462??2008-08-15?17:33??test1\Arrowsalt0.02.bmp

?????文件??????17462??2008-08-15?17:39??test1\Arrowgaussian0.02.bmp

?????文件??????17464??2008-05-19?01:43??test1\Arrow.bmp

?????文件????????614??2008-10-15?13:35??test1\areagrow.m

?????文件????????617??2008-10-15?13:28??test1\areagrow.asv

?????目錄??????????0??2008-11-15?20:34??test1

-----------?---------??----------?-----??----

???????????????140469????????????????????18