I?=?im2double（imread（‘medtest.png‘））;
imshow（I）;
x=198;?y=359;
[yx]=getpts;
x=uint16（x）;
y=uint16（y）;
J?=?regiongrowing（Ixy0.2）;?
figure?imshow（I+J）;

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

?????文件??????53631??2008-03-06?15:18??medtest.png

?????文件???????3074??2008-03-06?15:25??regiongrowing.m

?????文件????????161??2009-05-24?10:28??exregiongrowing.m

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

????????????????56866????????????????????3