Implementing diffusion on a hexagonal grid

[bzm3r]

A relevant resource to consult: Coordinate system for hexagonal pixels

Abstract:

A coordinate system is described which provides a natural means for representing
hexagonally-organized pixels. The coordinate system has the unusual property that its basis
vectors are not orthogonal. Vector-space properties and operations are described in this
coordinate system, and shown to be straightforward computations. Some image processing
algorithms, including calculations of image gradients and variable-conductance diffusion,
are expressed and analyzed.

[alice-i-cecile]

Related actionable issues: #1, #2.