How to make equation in matlab algorithm?

2017 3 23
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更新时间：2017 3 23
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How do I transform this equation into matlab algoritm?
eqn: where M and N are the dimensions of the image, and X is the intensity of the pixel located at row i and column j in the image map.

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Jan
Jan 2017-3-23

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E = sum(X(:)) / numel(X);
or
E = mean(X(:))

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Afiqah Abu Samah
Afiqah Abu Samah 2017-3-23
Thanks for answering my ques. the above equation is for wavelet energy. Why can't I get the same answer when I used wenergy2 function and when I used the code you wrote above?

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