OPT: maths: added arguments to denoise
OPT: maths: added arguments to denoise

Former-commit-id: 4d4b86880a02cab238ee6e58de9d7220aff03400
Former-commit-id: 62972543750db681633961d750aba21ceee918a6
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox