a=imread（‘lena.bmp‘）;
figure（1）;
imshow（a）;
a=imnoise（a‘gaussian‘0.005）;
figure（2）;
imshow（a）;
a=double（a）;
[depwide]=size（a）;
new_image=ones（size（a））;

r=0.5;
for?i=2:dep-1
????for?j=2:wide-1
????????g=0;
??????????for?m=-1:1
??????????????for?n=-1:1
??????????????????if（a（i+mj+n）-a（ij）==0）
??????????????????????g（m+2n+2）=0;
??????????????????else
??????????????????????g（m+2n+2）=1/abs（a（i+mj+n）-a（ij））;
??????????????????end
??????????????end
??????????end
??????????
??????????G=sum（sum（g））;
??????????for?m=-1:1
??????????????for?n=-1:1
??????????????????w（m+2n+2）=g（m+2n+2）/G;
??????????????end
??????????end
??????????
??????????new_image（ij）=a（ij）*r+（w（-1+2-1+2）*a（i-1j-1）+w（-1+20+2）*a（i-1j）+w（-1+21+2）*a（i-1j+1）+w（0+2-1+2）*a（ij-1）+w（0+21+2）*a（ij+1）+w（1+2-1+2）*a（i+1j-1）+w（1+20+2）*a（i+1j）+w（1+21+2）*a（i+1j+1））*（1-r）;
????????
????????
????end
end

for?i=2:dep-1
????new_image（i1）=new_image（i2）;
????new_image（iwide）=new_image（iwide-1）;
end

new_image（1:）=new_image（2:）;
new_image（dep:）=new_image（dep-1:）;

????
????figure（3）;
????imshow（uint8（a））
????figure（4）;
????imshow（uint8（new_image））
????
????imwrite（uint8（new_image）‘reci_gradu_weighted_0.5.bmp‘‘bmp‘）
????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件?????268254??2008-05-16?16:52??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\0.005_reci_gradu_weighted_0.5.bmp

?????文件?????268254??2008-05-16?16:52??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\0.05_reci_gradu_weighted_0.5.bmp

?????文件?????268254??2008-05-16?16:51??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\0.2_reci_gradu_weighted_0.5.bmp

?????文件?????268254??2008-04-21?09:36??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\lena.bmp

?????文件???????1210??2008-05-16?16:51??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\reci_gradu_weighted.asv

?????文件???????1264??2011-12-02?11:21??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\reci_gradu_weighted.m

?????文件?????268254??2008-05-09?10:25??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\reci_gradu_weighted_0.1.bmp

?????文件?????268254??2011-12-02?11:22??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)\reci_gradu_weighted_0.5.bmp

?????目錄??????????0??2011-12-02?11:15??梯度倒數(shù)加權(quán)\991340203\梯度倒數(shù)加權(quán)

?????目錄??????????0??2011-12-02?11:15??梯度倒數(shù)加權(quán)\991340203

?????目錄??????????0??2011-12-02?11:33??梯度倒數(shù)加權(quán)

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

??????????????1612216????????????????????12