Hi Rouhollah

what resolution do you mean? You can use mris_fill to fill the interior of the white and pial surfaces at whatever resolution you want, then compute the AND of the two volumes in matlab, or perhaps using mri_mask or something similar.

cheers Bruce On Thu, 13 Dec 2012, Rouhollah Abdollahi wrote:

Dear Freesurfer experts,

I tried to create high resolution ribbon from pial and white surfaces. Actua lly I found this question in mailing list but the answer was not clear. I ha ve a register.dat file and white and pial surfaces. My aim is to create a h igh resolution ribbon from those by using register.dat. What is the stream l ine or commands to do that? -- Best Regards            Rouhollah Abdollahi