close?all
clear
clc
I=imread（‘f.jpg‘）;
v=0.5*ones（size（I））;
I1=imnoise（I‘localvar‘v）;?????????%高斯噪音污染
I2=imnoise（I‘salt?&?pepper‘0.02）;?%椒鹽噪聲污染
I3=imnoise（I‘speckle‘0.02）;???????%乘性噪聲污染
figure
subplot（221）;
hold?on
title（‘源圖像‘）;
imshow（I）;
hold?off
subplot（222）;
hold?on
title（‘受高斯噪聲污染的圖像‘）;
imshow（I1）;
hold?off
subplot?223
hold?on
title（‘受椒鹽噪聲污染的圖像‘）;
imshow（I2）;
hold?off
subplot?224
hold?on
title（‘受乘性噪聲污染的圖像‘）;
imshow（I3）;
hold?off
%************
h=ones（33）/9;
J1=imfilter（I1h）;
J2=imfilter（I2h）;
J3=imfilter（I3h）;
figure
subplot?221
hold?on
title（‘源圖像‘）;
imshow（I）;
hold?off
subplot?222
hold?on
title（‘對有高斯噪聲的3*3領域平均后的圖像‘）;
imshow（J1）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-01-01?12:56??matlab的圖像縮放和旋轉代碼\
?????文件???????85968??2013-01-01?12:25??matlab的圖像縮放和旋轉代碼\5.jpg
?????文件??????116897??2013-01-01?12:25??matlab的圖像縮放和旋轉代碼\6.jpg
?????文件??????620888??2009-07-14?12:52??matlab的圖像縮放和旋轉代碼\f.jpg
?????文件?????????459??2013-01-01?12:39??matlab的圖像縮放和旋轉代碼\pinghualvbo.asv
?????文件?????????766??2013-01-01?12:43??matlab的圖像縮放和旋轉代碼\pinghualvbo.m
?????文件????????2086??2013-01-01?12:15??matlab的圖像縮放和旋轉代碼\suofang1.asv
?????文件????????2083??2013-01-01?12:17??matlab的圖像縮放和旋轉代碼\suofang1.m
?????文件????????1718??2013-01-01?12:21??matlab的圖像縮放和旋轉代碼\suofang2.m
?????文件????????1330??2013-01-01?12:23??matlab的圖像縮放和旋轉代碼\xuanzhuan1.m
?????文件????????1333??2013-01-01?12:25??matlab的圖像縮放和旋轉代碼\xuanzhuan2.m