NEW: mode weight for the similarity computation, similarity weight for the label fusion
NEW: mode weight for the similarity computation, similarity weight for the label fusion

Former-commit-id: 470eba20eec13ce847ecacf9a7a946e3d3f7827a [formerly d61c0d050b35db2316fd0b431b2aea870366878d]
Former-commit-id: 81dd2cf8cc72a3e84a20bb5115cdf2bb5766b713
Former-commit-id: 0343ec74c7e349627374891a1e91f657969f3591
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox