[R-sig-Geo] Calculate HIS/HSV values from RGB raster image

[Kevin Wolz]

Does anyone know if there is any pre-existing functionality to easily
calculate hue, saturation, and intensity (HSI or HSV or HIS) from RGB
raster layers?

There is the "rgb2hsv" function in the grDevices packages, but that works
on vectors or matrices of rgb values. The functions for calculating HSI
from RGB are fairly straightforward, so it' would be that bad to directly
calculate new raster layers from the RGB layers, but I'm wondering if there
are any preexisting functions. I can't seem to find any.

Thanks!
Kevin

--
Kevin Wolz
PhD Candidate, DeLucia Lab
University of Illinois at Urbana-Champaign

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