Hi,
I would like to find the 12 parameters for an affine transformation between two nifti images. I have been looking into using spm_coreg and spm_matrix but I couldn't quite understand how to use them form their help. spm_coreg outputs 6 parameters, I'm not sure what these 6 are?
Also is there a function that does the reverse of spm_matrix, i.e. one that can take an affine transformation matrix and split it into 3 rotations, 3 scalings etc...?
Thanks
Dan
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