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how to extract features using the equation

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Elysi Cochin 2013-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/60631-how-to-extract-features-using-the-equation

采纳的回答： Matt J

Please can someone help me in extracting features of an image using the following equation....

http://img443.imageshack.us/img443/176/meanvariancell.png

Please do reply

i tried something which i got while searching....

but wasnt sure whether it matches with the equation in the link..... thats y i gave it like that......

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Matt J 2013-1-31

http://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers

Elysi Cochin 2013-1-31

this is what i tried....

mean=conv2(A,ones(3)/9,'same');

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Matt J 2013-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/60631-how-to-extract-features-using-the-equation#answer_73015

Yes. It matches.

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