Hi @gabriel, not begging to differ per sé, I like to fathom the subtile differences in the theory behind this. I am aware of the subtractive (ink on paper filtering out wavelengths when reflecting, dyes in tissue filtering out wavelengths from the incident light) vs additive (pixels on a screen adding certain wavelengths, maybe reflecting light is also considered additive?) colour systems.
Am I correct in assuming that you disqualify colour deconvolution as a means to classify crops because you classify a reflectance image as additive instead of subtractive?
As a crop illuminated by white (sun)light absorbs certain wavelengths and reflects others, a crop also acts as a filter, imho, and does not fundamentally differ from a dye in a tissue or ink on paper. It is therefore hard to grasp for me that unmixing can only be done in images that are originating from subtractive and not from an additive(?) colour system, or that crops can’t be described in a subtractive colour system.
And just to get my nomenclature correct: what is the name for the (ImageJ) method/command where vectors in one coordinate system (RGB) can be rewritten into an (orthogonal) different coordinate system (e.g. crops, stained tissues), if each crop or tissue has its distinct RGB properties?