Hi-
The "extra" dimension there is because there is the following label:
"0" "Unknown"
So, it is not a problem. There are 4 header lines in the NIML-format output, so if you run:
3dinfo -labeltable MNI_Glasser_HCP_v1.0.nii.gz | wc -l
to count the number of lines output to the terminal, you get: 365. There are 3 "header" lines at the top, which you can see with:
3dinfo -labeltable MNI_Glasser_HCP_v1.0.nii.gz | head
... and one at the bottom of the output. Then there are 360 non-zero ROI lines, and one zero-ROI one.
I don't actually see a labeltable in the MNI_caez_ml_18+tlrc file... It has atlaspoints, though? Running
3dinfo -atlas_points MNI_caez_mpm_18+tlrc | grep ATLAS_POINT | wc -l
... produced 75.
-pt
