Mundane color problem
Mundane color problem
- Subject: Mundane color problem
- From: Roger Breton <email@hidden>
- Date: Thu, 03 Mar 2016 19:57:05 -0500
I need to pursue the following line of reasoning. Here's the situation.
I have a superlative CMYK to CMYK RIP.
I have a characterization of its "full gamut" on Brand X paper. Rather well
linearized but not rigorously spaced when you look at it in 3D.
My problem is, I want to "design" a CMYK gamut around this particular CMYK
characterization?
A CMYK gamut that would fit it as close as possible.
My plan is to use this fitted CMYK space for converting into from, say,
Photoshop, and then, later convert from that fitted CMYK space to the
characterized full gamut of the printer in the RIP.
So the conversion would go like :
A) say I have swell RGB imagery in some "wide" RGB spaces;
B) I convert to TO that sort of intermediary space in Photoshop ;
B) and then, in the RIP, the conversion would go from that fitted CMYK space
to "full gamut" of the printer.
Using some rudimentary tools I have at my disposal, I already undertook to
modify what I consider a well-behaved "large gamut" CMYK space, such as
CRPC-7.
Alas, the tools I use only allow modification of the CMYK colors - not the
RGB, which would allow the better fit to the "full gamut" I'm trying to
mimic.
I already compared AdobeRGB, eciRGB, and lot's of other RGB spaces as
potential candidates, instead of insisting on an CMYK space but I find them
all way too big.
Sounds like a trivial problem? There must be something I'm missing.
I know some RIP allow modeling the printer as an RGB device such as GMG but
not this one, not that I know of, at least.
If all fails, I'll end up making an ICC profile out of this "full gamut"
characterization to convert images straight into it.
Hope my life is not too complicated for you ;-)
/ Roger
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