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QTR-Quadtone RIP

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Re: Issue creating R800 profile using gloss optimizer

2007-12-14 by Olivier

> As shown here glop presents an inherent problem.  By the time QTR 
sees the
> page and applies the curves there's no way to distinguish the white 
of the
> border from the white of an image.  There is no ideal solution 
without a lot
> of changes.  So I've taken the 'least-bad" approach of zeroing the
> pure-white
> entry of the glop curve allowing the margins to be glop-free.  
Therefore
> this
> requires you to limit your image to a value of 254 instead of 255.  
This is
> easily
> done in Adj Levels -- set the Output slider to 0...254.
> 
> Roy

Roy, thanks for helping.
The issue of extreme whites and blacks not being covered by Glop with 
QTR is not such a big deal.
My concerns are more :
1. how to determine Glop %tage coverage except eyeballing it.
2. It looks like TIL is not respected with Glop : K %tage remains the 
same whether glop or not. To my understanding glop is an ink-like 
fluid so one doesn't want over-inking.
Olivier

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