%%%%canny算子
clear;
clc;
A=imread（‘1.bmp‘）;
A=imnoise（A?‘gaussian‘?0?0.001）;

figure（1）
imshow（A）;

%?I=filter2（fspecial（‘a(chǎn)verage‘3）A）/255;?%均值濾波模板尺寸為3
%?figure（2）
%?imshow（I）;

%??I=medfilt2（A）;%二維中值濾波
%??figure（2）
%??imshow（I）;
%?
%?I=wiener2（A[2?2]）;?%二維自適應(yīng)維納濾波?
%?figure（2）
%?imshow（I）;

%利用小波變換對(duì)圖象進(jìn)行降噪處理
[thrsorhkeepapp]=ddencmp（‘den‘‘wv‘A）;?????%獲得除噪的缺省參數(shù)
I=wdencmp（‘gbl‘A‘sym4‘1thrsorhkeepapp）;%圖象進(jìn)行降噪處理
I=uint8（round（I））;
figure（6）
imshow（I）

gauss_I=I;
Isize=size（I）;
ans=zeros（size（I））;
dir=zeros（size（I））;
I=double（I）;
gauss_I=double（gauss_I）;
fx=0;
fy=0;
for?i=2:Isize（1）-1
????for?j=2:Isize（2）-1
????????fx（ij）=（gauss_I（ij）+gauss_I（ij+1）-gauss_I（i+1j）-gauss_I（i+1j+1））;
????????fy（ij）=（gauss_I（ij）+gauss_I（i+1j）-gauss_I（ij+1

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

?????文件??????66616??2011-11-10?16:14??LoG算子\1.bmp

?????文件??????66614??2011-11-10?16:14??LoG算子\lena.bmp

?????文件????????610??2011-11-10?17:15??LoG算子\log.asv

?????文件????????594??2011-11-10?17:17??LoG算子\log.m

?????文件??????66616??2011-11-10?16:14??Prewitt算子\1.bmp

?????文件??????66614??2011-11-10?16:14??Prewitt算子\lena.BMP

?????文件????????802??2011-11-10?16:56??Prewitt算子\priwittlena.m

?????文件??????66616??2011-11-10?16:14??robert算子\1.bmp

?????文件??????66614??2011-11-10?16:14??robert算子\lena.bmp

?????文件????????792??2011-11-10?16:37??robert算子\robertlena.m

?????文件??????66616??2011-11-10?16:14??Robinson算子\1.bmp

?????文件??????66614??2011-11-10?16:14??Robinson算子\lena.bmp

?????文件??????90803??2011-11-10?16:14??Robinson算子\Lena_gaussian_v-0.001.png

?????文件???????6663??2011-11-10?16:14??Robinson算子\Lena_Robinson.png

?????文件??????93503??2011-11-10?16:14??Robinson算子\Photographer_gaussian_v-0.001.png

?????文件???????5369??2011-11-10?16:14??Robinson算子\Photographer_Robinson.png

?????文件????????477??2011-11-10?17:15??Robinson算子\robinsonlena.asv

?????文件????????477??2011-11-10?17:18??Robinson算子\robinsonlena.m

?????文件???????7300??2011-11-10?16:14??Robinson算子\Robinson_Lena_gaussian_v-0.001.png

?????文件???????6067??2011-11-10?16:14??Robinson算子\Robinson_Photographer_gaussian_v-0.001.png

?????文件??????66616??2011-11-10?16:14??sobel算子\1.bmp

?????文件??????66614??2011-11-10?16:14??sobel算子\lena.BMP

?????文件????????837??2011-11-10?16:14??sobel算子\sobellena.asv

?????文件????????971??2011-11-10?16:47??sobel算子\sobellena.m

?????文件??????66616??2011-11-10?16:14??Canny算子\1.bmp

?????文件???????2061??2011-11-12?22:32??Canny算子\canny.asv

?????文件???????2094??2011-11-14?21:22??Canny算子\canny.m

?????文件???????1605??2011-11-11?14:58??Canny算子\canny_filter.m

?????文件??????66614??2011-11-10?16:14??Canny算子\lena.bmp

?????文件??????66616??2011-11-10?16:14??Kirsch算子\1.bmp

............此處省略18個(gè)文件信息