Cross Correlation of two arrays in OpenCV

StackOverflow https://stackoverflow.com/questions/4621844

  •  30-09-2019
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Question

Is there a way to calculate the normalized cross correlation of two arrays in OpenCV (C++)? http://local.wasp.uwa.edu.au/~pbourke/miscellaneous/correlate/

I have a CvMat and I want to get a correlation matrix of all the cols. I saw cvCalcCovarMatrix but I can't see a way to normalize it to get the correlation.

Thanks

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Solution

You should use cvMatchTemplate() with method=CV_TM_CCORR_NORMED.

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