and you can use
mri_binarize --i aseg.mgz --match index1 index2 --o yourmask.mgz

On 8/3/2021 10:07 AM, Fischl, Bruce wrote:

Hi Ammar

 

In the mri dir there are segmented volumed called aseg.mgz and aparc+aseg.mgz where every voxel has an index into the FreeSurferColorLUT.txt lookup file

 

Cheers

Bruce

 

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> On Behalf Of Ammar Shujaa
Sent: Tuesday, August 3, 2021 4:19 AM
To: freesurfer@nmr.mgh.harvard.edu
Subject: [Freesurfer] How to extract individual structures after recon-all

 

        External Email - Use Caution        

Hello FreeSurfur Developers,

 

A have completed the segmentation of T1 MRI image using recon all.

 

I want to know how to get the segmentation of specific structures using mri and surf folders. For example, Thalamus, prefrontal lobe, grey matter and then save each one, so I can use them for machine learning later.

 

Looking forward to hearing from you.

 

Best regards,

Ammar Shujaa Addin


_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer