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Normalized Cross Correlation in IPPS?

Intel_C_Intel
Employee
‎11-07-2006 02:13 PM
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Hi All,

i need to calculate the normalized cross correlation for a 1D signal and a 1D template. The values returned by the ippsCrossCorr_64f - function are not normalized. I tried to devide the correlation values by the square root of sum(sig-mean(sig)) * sum(tpl-mean(tpl)) but the result was not what I expected either. Am I missing something? Your help is highly appreciated.

Thanks in advance.
Ulf
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Vladimir_Dudnik
Employee
‎11-16-2006 04:53 PM
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Hi, could you please look through IPP manual (volume 2 Image processing). See Chapter 11 Image Statistics Functions, article Image Proximity Functions, there are several variants of Cross Correlation functions, same of them with normalization

Regards,
Vladimir

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