Re: Real world experience w/ GMG and Oris RIPs
Re: Real world experience w/ GMG and Oris RIPs
- Subject: Re: Real world experience w/ GMG and Oris RIPs
- From: Graeme Gill <email@hidden>
- Date: Sun, 28 Nov 2004 04:45:23 +1100
- Organization: Color Technology Solutions Pty. Ltd.
Roger Breton wrote:
So, in this approach, one creates one device link profile for each print
process simulation? Such that, if I want to proof SWOP I create one device
link profile. If I want to proof ColorArt I create another device link
profile. And so on and so forth? The proofer profile itself always remains
but the link is everytime optimized for each print conditions simulations?
Yes. This is a more reasonable ask in a proofing situation, where source profiles
and proofer setup are likely to not vary so much. The main point to
this approach is that the forward profile (A2B) is generally the most accurate
(almost all grid values hold real color values), while a B2A table
is re-sampled, and sparsely populated with useful values (the majority of
values in an Lab cube are outside the device gamut.)
By directly inverting the A2B table with the specific values that will populate
the device link grid, a lot of inaccuracy is removed.
Graeme Gill.
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