Remove functions now existing in numpy.scipy
Recent scipy.ndimage work is great:
- applyPhi: https://docs.scipy.org/doc/scipy/reference/generated/scipy.ndimage.affine_transform.html
- rotations: https://docs.scipy.org/doc/scipy/reference/generated/scipy.spatial.transform.Rotation.html
- applyPhiField? https://docs.scipy.org/doc/scipy/reference/generated/scipy.ndimage.geometric_transform.html#scipy.ndimage.geometric_transform