@IsoMasks

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Usage: @IsoMasks -mask DSET -isovals v1 v1 ...
Creates isosurfaces from isovolume envelopes.

For example, to create contours of TLRC regions:
 @IsoMasks -mask ~/abin/TTatlas+tlrc'[0]' -isovals  `count_afni -digits 1 1 77`