Hi Tamir
I guess a quick and dirty way to do it would be to use mris_expand to create a surface 1mm out from the white, then fill that with mris_ribbon (or maybe mris_fill?). That would probably leave small holes.
An alternative would be to use some kind of non-maximum suppression, but I’m not sure we have anything out of the box. I guess it depends on what the properties of the boundary are that are important to you.
cheers
Bruce
From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu>
On Behalf Of Tamir Eisenstein
Sent: Monday, December 16, 2024 5:13 AM
To: Freesurfer@nmr.mgh.harvard.edu
Subject: [Freesurfer] Single voxel grey-white matter boundary binary mask
External Email - Use Caution
Dear FreeSurfer experts,
Is it possible using the FS tools to create a grey-white matter boundary binary mask in volume space (e.g., a nifti file) that will be a single voxel thick along the entire grey-white matter
boundary?
Many thanks,
Tamir
Dr Tamir Eisenstein, Ph.D.
Postdoctoral Researcher
FMRIB, Wellcome Centre for Integrative Neuroimaging
Nuffield Department of Clinical Neurosciences
John Radcliffe Hospital, Oxford OX3 9DU
University of Oxford
tel: +44 7938790763