Re: colorsync-users digest, Vol 3 #350 - 15 msgs
Re: colorsync-users digest, Vol 3 #350 - 15 msgs
- Subject: Re: colorsync-users digest, Vol 3 #350 - 15 msgs
- From: "Michael S. Dodds" <email@hidden>
- Date: Tue, 20 Aug 2002 08:51:45 +0000
>
See ANSI CGATS.6.1995 "Graphic Technology--Specifications for graphic arts
>
printing--Type 1".
>
>
Page 3 Paragraph 4.11
>
>
And I quote...
>
>
"4.11 dot gain (total of equivalent): the difference in dot area between
>
the input film printing dot area and the apparent dot area measured on the
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printed sheet. The computed value includes both physical changes in dot
>
size and optical effects which increase the apparent size of the printed dot
>
(e.g.., a 72% apparent dot area from a 50% input film printing dot area is
>
reported as 22% total dot gain)."
---
It seems then, from this, that
linerization and profiling of a platesetter or filmsetter
may be a good idea ...
but any discussion of image quality
referring to "dot gain"
is basically worthless.
The dot gain numbers have no relationship
to each other across the board.
MSD
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