Re: The MESS at the PRESS campaign
Re: The MESS at the PRESS campaign
- Subject: Re: The MESS at the PRESS campaign
- From: Henrik Holmegaard <email@hidden>
- Date: Mon, 12 Apr 2004 13:09:59 +0200
On 5 Apr 2004 18:56:11 -0700 Bruce Fraser wrote :
>For me, it's simply to point out that there are many middle positions
>between color management fascism and color management anarchy.
This in relation to the simple fact that the PS CMS and ICC CMS share
the assumption that there is an unlimited number of AtoBx / ToCIE
definitions of the color appearance at the object and sub-object level
(: the stroke may be one color space and the fill may be another color
space in InDesign) but there is one and only one BtoAx / FromCIE
separation for the intended printing condition where separation is the
shared ink limit and black replacement for the forward rendering tables
into the device data space.
This is not the first time I seem to find myself moved by MacWorld into
the fascist camp, whatever that may mean, but I should like it to be
the last, please.
This discussion began because the color management marketing people
have made a fundamental mistake which is to sell "device independent
color".
This color marketing pitch ignores the fact that what happens on the
printer and the press has to do with the ink limit and black
replacement.
This is what CMYK is all about as it is a data space with a lot of
latitude which allows process specific adaptations to the intended
printing condition.
The MacWorld argument, as I understand it, is that screenshots need
high black replacement and color images need low / lower black
replacement.
The argument, again as I understand it, is that if screenshots do not
receive high black replacement they are susceptible to casts caused by
graybalance shifts.
I would humbly point out that in a standards-based printing condition
casts caused by graybalance shifts are indeed cause for concern.
However, they are not cause for concern within the image design and
page design workgroup convened to create a print publication, but they
are very much cause for concern on the part of the prepress manager and
/ or press manager. Because if the press does not run graybalanced, the
press run does not get remunerated.
I would also humbly point out that to the extent that for the same ink
limit and gamut mapping settings in print profiling software, changing
the black replacement does not deliver the same color appearance, then
this is a problem for the print profiling software to address and not
for the PS CMS and ICC CMS to be fundamentally redesigned.
In debating how to move the color management community forward from
Photoshop to InDesign I find it not very useful to insist that each
Photoshop user to whom photography is outsourced for an InDesign
publishing project should refrain from making her own decisions about
how best to separate to the intended printing condition. On the
contrary the Photoshop users should convert content into ECI-RGB for
their RGB remapping responsibility, and everyone should soft-proof,
proof-print and color separate with one and the same profile for the
intended printing condition. No unauthorized edits to the AtoBx tables
in the profile for the intended printing condition, no manual custom
color separations before the page design, fand PDF/X-3 remote proofing
between the image design studios, the page design studio and the
prepress manager / press manager so that RGB content can be properly
signed off after cross-rendering and proofing by all concerned.
If there are exceptions then treat them as the exceptions they are. Do
not make the mistake of treating the exception as the rule because when
that translates into the message for the page design community, then
that community turns color management off because the image design
community refuses to co-operate and as a rule is misinformed. It may be
argued that there is safety in early binding in Photoshop as late
binding in InDesign is fragile, but it may be argued with equal
plausibility that there is early binding is unsafe as for twenty years
it has caused an uncontrolled mix of separations in the actual press
run. The answer to this debate is not yelling fascism but accepting
that publishing is teamwork where mutual control and mutual education
determine the quality of the final product. The page design community
has a climb much harder and much longer than the image design
community, and it needs consistency and simplicity in communication.
Thanks,
Henrik
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