You can try mri_concat seg1.nii.gz seg2.nii.gz --sum --o seg.nii.gz

This will work if there are no overlapping voxels. If there are, you'll have to do something like

mri_mask seg1.nii.gz seg2.nii.gz seg1-masked.nii.gz

then use the masked in the mri_concat command

Hi Freesurfer Team,

I am trying to resample the aparc annotation into functional space using mri_label2vol. It works fine and the script produced the segmentation for each hemisphere. Is there a way to merge both the left and right volumes together? Thanks for your help.

Best Wishes,

Elijah

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