I need to apply the transformation matrix of SPM (*_sn.mat) to tensors calculated in another software. I found this function by Dr. Ashburner that should do that:

http://sourceforge.net/p/spmtools/diffusion/code/ci/master/tree/Preprocessing/dti_warp_tensors.m#l59

However is not working with 6 separate Analyze images. How should I format the tensors to have them applied the transformation matrix of SPM?

Thank you.

Dorian

TJU