Hello Mark,
> dI am trying to find the center of mass for evaluation of both the size of
> the voxel and also the volume of the voxel itself. Does anyone know of a
> way to do this using spm or must you use matlab to do so? if so what is the
> best way at going about this.
> thankyou for your help
> mark
I really wouldn't know if SPM supports this. When automated the normalisation of PET images, I also had to set the origin in the .mat-files as the normalisation routines are very sensitive to translations in the starting transformation.
Attached is a try-out program I used to compute the centre of mass in a volume. It is very general, but I think it can be embedded very easily if you are willing to write your own matlab functions.
Hope this helps,
Alle Meije Wink
--
Alle Meije Wink
Institute for Mathematics and Computing Science, room 105
University of Groningen P.O. Box 800
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" I guess it comes down to a simple choice, really.
Get busy living, or get busy dying. "
(Andy Dufresne in The Shawshank Redemption)
