OPT: now estimating center of mass of the centerline/segmentation to address issue #33.
OPT: now estimating center of mass of the centerline/segmentation to address issue #33.

3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox