3D image template matching by using (normalized) cross correlation?

I have a 3D medical image.

I want to find a region in the image by template matching.

The template is a smaller 3D matrix, wich I want to use for normalized cross correlation with the 3D image matrix.

I only find the matlab built in functie for 2d image matching: normxcorr2.

How can I use cross correlation in 3D?

Answer 1

[Matt J]

I've never used it myself , but you could try this FEX submission,

https://www.mathworks.com/matlabcentral/fileexchange/73946-normxcorr3-fast-3d-ncc