RE: Approval and ICC
RE: Approval and ICC
- Subject: RE: Approval and ICC
- From: Henrik Holmegaard <email@hidden>
- Date: Mon, 13 Nov 2000 22:28:09 +0100
Jim Mitchell <email@hidden> wrote:
Your comment suggests that one would have to create an ICC profile for
every possible stock. That process is just not needed. Profile to a standard
proofing system and you'll be in the same position as you would be
using film >based proofs and their transfer systems.
In an ICC profile, the paper is integral to the color
characterization. There is quite simply no such thing as an ICC print
profile which is independent of the paper lightness and tint.
To work with the Approval as a plain paper ICC proofer, you'll need a
profile for each paper, and you'll need to set the CMYK to CIELab to
CMYK proofing transform to relative colorimetric, factoring out the
paper which is identical for the print and the proof.
If you don't care about the paper, then there's no reason to use a
plain paper proofer. (As a matter of fact, over here Kodak
Professional is selling it's inkjets with the BESTColor RIP just as
it used to sell its dye subs with LogoProof.)
a. You might then use an inkjet proofer, and zero out the source
paper white in the proofing transform (CMYK to CIELab to CMYK with
relative colorimetric).
b. Or you might use a film-based 'proof' that only uses the RGB to
CIELab to CMYK part of the ICC workflow, and just assumes the
colorants and media offer a felicitous match.
My conceptual problem with the Approval is that I'm not sure what the
product wants to be, digital ICC plain paper proofer, or something
else.
Linocolor can work just as easily with a proofer in mode (a) as one
in mode (b), simply by toggling paper white simulation on and off,
but the notion of 'profiling to a standard proofing system' is itself
vacuous. It is not the proofing system but what it simulates that is
the target.