Re: Hi-Fi inksets
Re: Hi-Fi inksets
- Subject: Re: Hi-Fi inksets
- From: Robert L Krawitz <email@hidden>
- Date: Fri, 6 Feb 2004 07:41:32 -0500
Date: Fri, 06 Feb 2004 15:27:24 +1100
From: Graeme Gill <email@hidden>
Robert L Krawitz wrote:
>Cross-plane screening helps most at very low densities
>(highlights). The placement error is constant (it doesn't depend
>upon the density). So if the placement deviation is on the order
>of .001", but the separation between dots is 1/64" (which at
>1440x720 DPI corresponds to a density of about .4%, which is
>certainly quite visible), the placement error is negligible
>compared to the average dot separation.
Good point. So to use this type of screening in the real world, it
would be desirable to have the different color planes screens
de-correlated once the dot density grow high enough, thereby
getting the benefits in the highlights where it counts, without
triggering banding and pattern issues.
Why would this *trigger* banding issues? At worst it wouldn't help
solve them, but I don't see how it would actually trigger any
problems.
Pattern issues are another matter, particularly if the screening isn't
done carefully.
--
Robert Krawitz <email@hidden>
Tall Clubs International --
http://www.tall.org/ or 1-888-IM-TALL-2
Member of the League for Programming Freedom -- mail email@hidden
Project lead for Gimp Print --
http://gimp-print.sourceforge.net
"Linux doesn't dictate how I work, I dictate how Linux works."
--Eric Crampton
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