Error Concealment | JPEG | MPEG-4 | Wavelet | YUV

Dear all;
 I am newly study on the neural networks applications in  image processing area. I want to
cluster an image basically 2 region by  the use of kohonen self organazing maps (SOMs). But
cannot handle using  the matlab nn toolbox.Is there any body who worked on this subject 
before? Could you please help about the usage of that functions? How i  can interprete an image
to SOM network and cluster it 2 region?
  Thanks
  Regards
  Emo

(You need to be a member of imagedsp -- send a blank email to imagedsp-subscribe@yahoogroups.com )

I have worked a little bit with image segmentaion but
not using the technique u have mentioned. Image
segmentation is as you have described a clustering
problem. 

Normally you try to describe each pixel in your image
as a feature vector. This feature vector may contain,
the x coordinate, y coord, and then 1 or more colour
components(either RGB or YUV or any colour space that
you wish).

Now you try to cluster these feature vectors into 2
clusters, using whatever clustering techniques that
you wish to use.

Hope it helps.

Regards
Ranjith

--- Emre ARDALI <e...@yahoo.com> wrote:

> Dear all;
>  I am newly study on the neural networks
> applications in  image processing area. I want to
> cluster an image basically 2 region by  the use of
> kohonen self organazing maps (SOMs). But cannot
> handle using  the matlab nn toolbox.Is there any
> body who worked on this subject  before? Could you
> please help about the usage of that functions? How i
>  can interprete an image to SOM network and cluster
> it 2 region?
>   Thanks
>   Regards
>   Emo
>

(You need to be a member of imagedsp -- send a blank email to imagedsp-subscribe@yahoogroups.com )