convert3d

c3d is a tool from itksnap used by hippunfold, Preprocess Functional (Hallquist pipeline) (and in their own container by fmriprep and friends).

As of 2025-10-24 on Rhea (linux server), c3d is vs 1.4.4. Updated from 2017 install b/c hippunfold requires -retain-labels option.

readlink /opt/ni_tools/c3d
# itksnap/c3d-1.4.4-Linux-gcc64/bin/