implement an algorithm to derive a class fraction layer from a classification layer

[janzandr]

Requested by @lutzhutz.

Given a classification at a finer resolution, derive class fractions at a coarser resolution

[janzandr]

Hi @thielfab, I thought we already had such an algorithm!? Or maybe we just talked about it in the past. I'm a bit confused, have you an idea?

[janzandr]

@thielfab I only find the version that requires a vector as input:

[thielfab]

Yes, we talked about this https://bitbucket.org/hu-geomatics/enmap-box/issues/1328/class-fraction-layer-from-categorized

[janzandr]

Ah yes, and now that I read it, I think my answer is not correct.