🚀 go-pugleaf

In article <20537@sun.uucp>, falk@sun.uucp (Ed Falk) writes:
> Here's a related question, does anybody know the conversion factors to
> map colors in Red-Green-Blue space to Cyan-Yellow-Magenta-Black?  What
> I would like to do is generate four images on a high-res laser printer
> that can be used directly for printing; i.e. do the seperation in
> software.
> 
> 		-ed falk, falk@sun.com, sun!falk

It's trivial.

where R=G=B,
	then Black = 1-R (or G or B)
	C=M=Y=0
else

	black = 0
	+- -+	+- -+   +- -+
	| R |   | 1 |   | C |
	| G | = | 1 | - | M |
	| B |   | 1 |   | Y |
	+- -+   +- -+   +- -+
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