Does absolute intensity in an image matter when computing the normalized cross correlation with NORMXCORR2?

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Prabhakar 2011-1-18

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https://ww2.mathworks.cn/matlabcentral/answers/130-does-absolute-intensity-in-an-image-matter-when-computing-the-normalized-cross-correlation-with-norm

I have two different images of the same object which differ in overall intensity. I would like to know if this will affect the normalized cross correlation computation with NORMXCORR2.

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Walter Roberson 2011-1-22

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https://ww2.mathworks.cn/matlabcentral/answers/130-does-absolute-intensity-in-an-image-matter-when-computing-the-normalized-cross-correlation-with-norm#answer_364

Although I cannot answer your question, I found a Technical Solution that relates to some subtle uses of normxcorr2 that might possibly turn out to be of influence when you are coding.