AW: Controlling UCR
AW: Controlling UCR
- Subject: AW: Controlling UCR
- From: Peter Henry <email@hidden>
- Date: Fri, 12 Jul 2002 19:21:53 +0200
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To: email@hidden (Colorsync l ist)
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Subject: Controlling UCR
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From: email@hidden (Lee Blevins)
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Date: Fri, 12 Jul 2002 05:09:17 -0400
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Organization: Digital Graphics, Inc.
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We're using Monaco Proof.
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Our workflow is CMYK to CMYK color management using ONYX Postershop.
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If we have a 4x100 shadow (solid in all 4 colors) when we preview the
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image in Postershop the shadow is reduced.
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For example, the numbers become something similiar to 95C, 88M, 88Y,
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75K.
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We don't want this.
I'm just thinking about how to avoid this. It make sense that this happens.
The values measured on your screen are the ones PosterShop is going to
print.
The Colour Dynamic on this particular printer/media/ink combination does
show the
desired 4 Colour solid in 95C, 88M, 88Y,
75K.. It is this way because the media icc profile tells this the CMM in
PosterShop
So visually it shoud be o.k. even if you expected the 4 times 100%
You could optimise like Neil Snape mentioned in his mail e.g.
inkrestrictions and linearisations to the press standard you wan't to
simulate but 4x100% on a offset press will never look like 4x100% on an
inkjet.
Even a press simulation (Neil mentioned this) which is possible in
PosterShop will not help really because the output profie restricts this.
e.g. coming from your cmyk side simulating lets say "FograLwc" pos. and then
going to your media icc won't change this.
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Is there any way we can control the shadow density in a CMYK
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image using
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color management, or is it Postershop doing this?
If you use monaco then you controll everything in the icc profiles via this
tool.
PosterShop's role is only to calibrate the substrate.
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How can we tell how much of this alteration is due to
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Postershop and how
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much is happening due to the profile?
You could simulate this in Photoshop. Just try a cmyk to cmyk mapping using
the desired profiles.
here you should be able to measure this.
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Nowhere in the Monaco Proof s/w did we ask for a limited d-max
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(UCR.) At
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least that we were aware of.
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--__--__--
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regards
Peter
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Oce Deutschland GmbH
European Product Support Germany
D-72336 Balingen
email@hidden
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