How to find the 2-D correlation coefficient between the two images, each having same pixels?

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Abdul Gaffar
Abdul Gaffar 2021-10-4
评论： KSSV 2021-10-6
I have to calculate the 2-D correlation coefficient between the images img1 and img2, each having same pixels. I am doing the following:
img1 = zeros(256);
img2 = ones(256); or you can take all white image
Corr_Coeff = corr2(img1, img2)
Output: NaN (??)

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回答（1 个）

KSSV
KSSV 2021-10-4
编辑：KSSV 2021-10-4
Read about ssim.
You can try:
R = regression(Img1(:),Img2(:)) ;
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