Moment invariants
Add the moment invariants module.
This module provides classes and filters for rotation invariant pattern detection in 2D and 3D scalar-, vector-, and matrix-valued datasets. vtkComputeMoments computes the moments. Its output together with the pattern go into vtkMomentInvariants, which puts out a field containig the similarity of the pattern to each point. Detailed information on the theory can be found in Bujack and Hagen "Moment Invariants for Multi-Dimensional Data": http://www.informatik.uni-leipzig.de/~bujack/2017TensorDagstuhl.pdf.