you have to register one to another using bbregister, fslregister, or spmregister. You can then run mri_surf2surf specifying --sval-xyz surfname and specifying --tval-xyz to get and output surface (instead of a scaler file). You will also have to spec the registration you created above with --reg (or --reg-inv).

Note that the number of vertices will be different, but you should still be able to load it into tksurfer.

doug

Guang Zeng wrote:

Hi, there,

mri_surf2surf resamples one CorticalSurface http://surfer.nmr.mgh.harvard.edu/fswiki/CorticalSurface onto another.

If I have two subjects from different time points (tp1 and tp2), I'd like to compare the FreeSurfer analyzed surface data. For example, could I use mri_surf2surf to resample the white matter surface of tp1 onto tp2, so I can overlay the white matter surface of tp2 to tp1 using tkmedit?

Thanks!

guang

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