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

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Purbankan 2013-11-1

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回答： KAE 2018-2-28

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

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Answer 1

Image Analyst 2013-11-1

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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()?

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Purbankan 2013-11-1

编辑：Purbankan 2013-11-1

Sir I m trying to first reduce the color of the image, and then use simulated annealing for seeking the optimal clusters using the image colors which has been projected into a small set of prototypes using SOM.

Anyway this function rgb2ind(), isnt this function for RGB images? how can i use this function for L*u*v*?

Image Analyst 2013-11-1

It performs clustering, so it should probably work, though I haven't tried it on anything but uint8 images. If you have Luv images they're floating point probably, and in a different range than 0-255. Perhaps you can convert Luv to RGB if you find out it's necessary. But bottom line, I don't have any SOM code.

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