MATLAB: I need a matlab code for color reduction using self-organizing map (SOM) learning

color reductionImage Processing Toolboxself-organizing future mapself-organizing mapsofmsom

Please Help me. I stuck here and need the code urgently. I m using color images which are represented in L* u* v* color space…..

please help me.. URGENT

Best Answer

Why does it need to be SOM? Have you tried Brett's tool: http://www.mathworks.com/matlabcentral/fileexchange/38484-segmenttool-an-interactive-gui-for-segmenting-images Or maybe http://www.mathworks.com/matlabcentral/fileexchange/37197-dem-diffused-expectation-maximisation-for-image-segmentation Or even simply rgb2ind()?

Related Solutions

MATLAB: Can anyone help me with a Matlab program to cluster using self organizing maps??

First search on "SOM"

>> lookfor som

Second, use the commands help and doc to understand functions that

a. Deal with creating a SOM

   help nnt2som, doc nnt2som
   help newsom, doc ...
   help initsompc, ...
   help learnsom, ...
   help learnsomb, ...

b. Deal with SOM plotting

help plotsom, doc ...
help plotsomhits
help plotsomnc
help plotsomnd
help plotsomplanes
help plotsompos
help plotsomtop

3. Finally, try to duplicate some of the examples before using on your own data

help nndatasets, doc ...

Hope this helps.

Thank you for formally accepting my answer.

Greg

MATLAB: How do you access the values of the internal states of networks in the neural network toolbox

If you use the command

 lookfor som

you will find a listing of som plot routines:

 plotsomhits  - Plot self-organizing map sample hits.
plotsomnc     - Plot Self-organizing map neighbor connections.
plotsomnd     - Plot Self-organizing map neighbor distances.
plotsomplanes - Plot self-organizing map weight planes.
plotsompos    - Plot self-organizing map weight positions.
plotsomtop    - Plot self-organizing map topology.
plotsom       - Plot self-organizing map.

Perhaps you will have more luck looking at their code.