Normalized Cross Correlation for rgb image

Question

Nataliya 2014-12-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/166562-normalized-cross-correlation-for-rgb-image

回答： Image Analyst 2014-12-14

Here is the code for to find normalized cross correlation between two images.

function NK = NormalizedCrossCorrelation(origImg, distImg)
origImg = double(origImg);
distImg = double(distImg);
NK = sum(sum(origImg .* distImg)) / sum(sum(origImg .* origImg));

But it works for grey scale images. When I run it for rgb image, error occurred: ??? Error using ==> mrdivide Inputs must be 2-D, or at least one input must be scalar.

Error in ==> NormalizedCrossCorrelation at 15 NK = sum(sum(origImg .* distImg)) / sum(sum(origImg .* origImg)); Can you please help me modify this code for rgb image. Thanks in advance.