Is there anybody to help me?
I  need some matlab code of the following:
 about Roberts detector
 Prewitt detector
 Sobel  detector
 Kirsch detector
if you have more code about this.please send them to this e-mail:anxx12345@qq.com
 thank you very much 

"anxx12345 GUAHHUA" <anxx12345@gmail.com> wrote in message <hrr4or$nvh$1@fred.mathworks.com>...
> Is there anybody to help me?
> I  need some matlab code of the following:
>  about Roberts detector
>  Prewitt detector
>  Sobel  detector
>  Kirsch detector
> if you have more code about this.please send them to this e-mail:anxx12345@qq.com
>  thank you very much 

Hi, the EdgeDetector System object in the Video and Image Processing Blockset supports the following edge detection methods:

Sobel | Prewitt | Roberts | Canny

Wayne

In article <hrr4or$nvh$1@fred.mathworks.com>, anxx12345@gmail.com 
says...
> Is there anybody to help me?
> I  need some matlab code of the following:
>  about Roberts detector
>  Prewitt detector
>  Sobel  detector
>  Kirsch detector
> if you have more code about this.please send them to this e-mail:anxx12345@qq.com
>  thank you very much 
> 

The function edge in Image Processing Toolbox does several of these: 
Prewitt, Sobel, and Roberts (and more).  The related fspecial has 
prewitt and sobel as options as well.

-- 
Loren
http://blogs.mathworks.com/loren
http://matlabwiki.mathworks.com/MATLAB_FAQ

"anxx12345 GUAHHUA" <anxx12345@gmail.com> wrote in message <hrr4or$nvh$1@fred.mathworks.com>...
> Is there anybody to help me?
> I  need some matlab code of the following:
>  about Roberts detector
>  Prewitt detector
>  Sobel  detector
>  Kirsch detector
> if you have more code about this.please send them to this e-mail:anxx12345@qq.com
>  thank you very much 

a hint:

http://www.mathworks.com/products/image/

us