hmmm
if i have
an eight-colour lookup table/palette (rgb/cmy/b/w)
plus a middle grey to go with it
is there a way to interpolate those so that i can convert a normal rgb into the palette
i have done this with just the eight corners (3d interpolation in the colour cube)
but adding another in the middle makes it more complex in a way i don't entirely understand
Edit: might be able to get it by just subdividing the rgb space once, so that there's a specific point corresponding to middle grey, and then fill in the gaps that leaves with the relevant halfway colours....
