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Article #256

Re: More ink = lighter image ?

#256
From: Gernot_Hoffmann
Date: Sun, 11 Jan 2009 10:32
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Lou,

thanks for taking the time. Wish you all the best
for the new year ! Especially no color in your B/W
prints.
By the way, this profile Europe...FOGRA27.icc came
with CS2. It's not the best choice - better is
ISOcoated-v2-eci.icc.
Your much appreciated explanations are clearly in
contradiction to text book knowledge: offset inks
are transparent filters with thickness 1 or 2 micro-
meters. Therefore a new and fresh interpretation is
welcome.
There are two open questions:
1) Which black point is used for BPC - the darkest
black or the darkest neutral black ?
2) These CLUTs are using n points on each axis C-M-Y-K,
n=11 for Europe and n=16 for ISO.
All combinations are used, which results in 16^4 =
65536 sets L-a-b. Where is the ink limit ?

In the moment I'm programming graphics for gamut
boundaries in 3D and 2D, similar to ProfileMakers Gamut
View.

Best regards --Gernot Hoffmann
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Subject: Re: More ink = lighter image ?
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Date: Sun, 11 Jan 2009 02:32:23 -0800
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