Re: 100% GCR with UCA?
Re: 100% GCR with UCA?
- Subject: Re: 100% GCR with UCA?
- From: email@hidden
- Date: Fri, 17 Oct 2003 10:21:01 EDT
In a message dated 10/17/03 7:09:41 AM, email@hidden writes:
>
I have a copy of ProfilierPro, however, the solution is required for a
>
newspaper printing environment, what are your opinions with regards to
>
this? Is it a feasilbe solution?
>
Can one profile a printing press with ProfilerPRO? Absolutely, I've seen some
great results. Is it frequently done? No, since thats not a market that
ColorVision sells to.
>
>
It would appear that there isn't a simple interface (custom curves) to
>
set UCA as well as setting GCR in any current profile package. Is that a
>
fair conclusion?
>
If you think, not of buttons with these names, but of the effects these
functions create, then my last post covers your goals already. UCA means adding
color back in, instead of black. Gray component removal is one recipe for
removing balanced amounts of colorants and replacing with black (or with newer
inkjets, actually replacing with gray in some cases). There is no way to do both
these contradictory things in different sections of the density range via
buttons; you need to do it by drawing your own black generation curve, with your
own toe, and controlling it there. Pushing the curve near to the right hand wall
of the graph is effectively Under Color Addition, since it is using more
color and less black for that section of the range. Nailing a toe point to the
bottom of the graph is effectively replacing all Gray Component with colors up to
that point on the graph. Buttons are one dimensional; graphs are two
dimensional. Your needs are too complex for a one dimensional solution.
C. David Tobie
Product Technology Manager
ColorVision Inc.
email@hidden
www.colorvision.com
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