COM: now save in int16
COM: now save in int16

Former-commit-id: 2cd9ba7455f502cfc668a4a05e4697b6f372266a [formerly ac917aca4e4dd23d93a3d36db81b0c49990a9d56]
Former-commit-id: 0efbd26b88258ae5d140b7b31d69ad5a21af94bf
Former-commit-id: 51cd9a8d6ca2ebdb20c682085ab958a5f5253ccf
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox