OPT: now using sinc instead of NN for final interpolation
OPT: now using sinc instead of NN for final interpolation

Former-commit-id: d8330cbd3b6f58f7b5581e3d5501f06adf725320 [formerly 2ba56fd7e378d141f67b50233df2336ca14a982e]
Former-commit-id: 652b2d3bc91ccb70a391345bd32313d0b4e41681
Former-commit-id: 7be8bfe2d5ab3f5bef15f130f70c8fe10ccb8ed1
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox