Folks:
I'm hoping that there's an aparc --> voxels program. That program might be mri_aparc2aseg, but I wanted to check first if that's the best way to go and whether there are particular options to know about and so on.
Basically I want a program that inputs a parcellation, and outputs a label mri where each voxel that's fully or partially between the white and pial surface gets labelled with the parcellation label from the vertex (white or pial) that it's closest to. (A variation that would also work for our purpose would label voxels even beyond that, possibly all voxels).
This seems like it's probably already been done, hence my asking.
I'm thinking that *might* be what mri_aparc2aseg does... but I'm not clear what the wiki description is trying to say:
https://surfer.nmr.mgh.harvard.edu/fswiki/mri_5faparc2aseg?action=highlight&...
First, it appears from Example 1 that mri_aparc2aseg does something interesting when run with basically no specific command line arguments, so presumably using default input files. But then what is the purpose of --ribbon?
Then the description talks about the automatic segmentation volume as though it's an input separate from the ?h.ribbon, yet there are no parameters related to that. And finally the --noribbon flag is mentioned as turning something off, but it's not clear what it's turning off.
Bottom line: I'd appreciate some clarification as to which program does what I want, and if it's mri_aparc2aseg, then what options are appropriate to do the simple version of the task where it ignores existing aseg and ribbon.
Thanks,
Graham