normalize corrolation between two images?

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nadia
nadia 2016-2-17
Hi, I want to calculate this formula in matlab. how can I do it?
1/(M×N) ∑∑W'(i,j)× W(i,j)
which range of i an j is from 1 to M and N respectively. I need this formula for computing normalized correlation between w and w'.

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