function?I1=gaussian_filter（Ideltahsize）
%I為讀入的要處理的圖像delta是高斯分布的標準差hsize是使用的高斯模板的大小
%返回對圖像I進行高斯濾波后得到的濾波圖像
mid=（hsize+1）/2;
H=double（gaussian_templete（deltahsize））;
[N1N2]=size（I）;
%圖像中心部分處理，調用gaussian模板
I1=zeros（N1N2）;
for?i=mid:N1-mid+1
????for?j=mid:N2-mid+1
????????I2=I（i-mid+1:i+mid-1j-mid+1:j+mid-1）;%取出用于計算I1（ij）的圖像中的矩陣塊hsize*hsize
????????I2=I2.*H;%與H做內積
????????I2=sum（I2）;
????????I1（ij）=sum（I2）;%計算矩陣I3的所有元素的累加和，賦值。
????????if?I1（ij）?>?255
????????????I1（ij）?=?255;
????????elseif??I1（ij）?????????????I1（ij）=0;
????????end
????end
end
%圖像邊緣點賦值
for?i=1:mid-1
????I1（i:）=I（i:）;
end
for?i=N1-mid+2:N1
????I1（i:）=I（i:）;
end
for?j=1:mid-1
????I1（:j）=I（:j）;
end
for?j=N2-mid+2:N2
????I1（:j）=I（:j）;
end

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

?????文件????????412??2010-04-19?22:11??matlab濾波器源碼\gaussian_templete.m

?????文件????????633??2009-04-19?13:53??matlab濾波器源碼\laplacian_filter.m

?????文件????????960??2010-04-19?22:27??matlab濾波器源碼\log_filter.m

?????文件????????438??2010-04-19?22:06??matlab濾波器源碼\log_templete.m

?????文件????????869??2010-04-19?22:24??matlab濾波器源碼\gaussian_filter.m

?????文件????????200??2010-04-19?23:02??matlab濾波器源碼\y2.m

?????目錄??????????0??2010-04-20?19:26??matlab濾波器源碼

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

?????????????????3512????????????????????7