Re: Mundane color problem
Re: Mundane color problem
- Subject: Re: Mundane color problem
- From: Terence Wyse <email@hidden>
- Date: Fri, 04 Mar 2016 05:22:15 -0500
I'm facing something similar. I would like to design a "synthetic" CMYK space to use as a simulation profile...but lack the tools to do it....to define the primaries and secondaries and a particular TRC and then have it build this ideal CMYK simulation profile...but how?
Sent from Terry's iPad Mini
> On Mar 3, 2016, at 7:57 PM, Roger Breton <email@hidden> wrote:
>
> I need to pursue the following line of reasoning. Here's the situation.
>
>
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> I have a superlative CMYK to CMYK RIP.
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>
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> 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.
>
>
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> 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.
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>
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> 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.
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>
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> So the conversion would go like :
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>
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> 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.
>
>
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> 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.
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>
>
> Sounds like a trivial problem? There must be something I'm missing.
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>
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> 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.
>
>
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> 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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>
>
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