I have a question about the inversion of the normalisation operation.
I need to superpose a contrast image (or beta, T, F images), computed in normalised space
(T1 MNI), to the original MPrage image of a subject.
Let us assume that I have MPRage and EPI images
MPrage = 'mprage-Subject.img';
I = 'Subject*.img';
The realigned images are
rI = 'rSubject*.img';
The normalised and smoothed images are
wrI = 'swrSubject*.img';
From those images I compute a contrast image based on a given fMRI model
C = 'con_0006.img';
How can I invert the normalisation operation to superpose the last result
to the ORIGINAL MPrage image with the same resolution and dimensions?
I have no trouble going from rI to I using John's Gems #8 but this works
only for solid body transformations. Normalisation is another matter as
it implies a nonlinear transformation.
Can anyone give me a hand?
Thanks in advance