How to get features from selected part of image ?

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Isee You
Isee You 2012-11-29
I've isolated part of a certain image. I want to identify the features in this part and then compare these characteristics with the pictures that I have isolate part of it (compare selected characteristics with new characteristics).

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Image Analyst
Image Analyst 2012-11-29
See my image segmentation tutorial, and other image processing examples: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
(By the way, this is the latest duplicate so I deleted your earlier duplicate and transferred my answer here)
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Isee You
Isee You 2012-11-29
编辑：Isee You 2012-11-29
thank you very match
and i am sorry for duplicate .
but i cant find what i want there i want to know how to fetcher extraction and matching well

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