https://community.intel.com/t5/Intel-Integrated-Performance/Normalized-Cross-Correlation-in-IPPS/m-p/901543#M12829 Hi All,<BR /><BR />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.<BR /><BR />Thanks in advance.<BR />Ulf<BR /> Tue, 07 Nov 2006 22:13:26 GMT Intel_C_Intel 2006-11-07T22:13:26Z https://community.intel.com/t5/Intel-Integrated-Performance/Normalized-Cross-Correlation-in-IPPS/m-p/901543#M12829 Hi All,<BR /><BR />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.<BR /><BR />Thanks in advance.<BR />Ulf<BR /> Tue, 07 Nov 2006 22:13:26 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Normalized-Cross-Correlation-in-IPPS/m-p/901543#M12829 Intel_C_Intel 2006-11-07T22:13:26Z https://community.intel.com/t5/Intel-Integrated-Performance/Normalized-Cross-Correlation-in-IPPS/m-p/901544#M12830 <P>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</P> <P>Regards,<BR /> Vladimir</P> Fri, 17 Nov 2006 00:53:05 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Normalized-Cross-Correlation-in-IPPS/m-p/901544#M12830 Vladimir_Dudnik 2006-11-17T00:53:05Z