Re: profile data manipulation
Re: profile data manipulation
- Subject: Re: profile data manipulation
- From: Graeme Gill <email@hidden>
- Date: Tue, 01 Mar 2016 11:08:04 +1100
Roger Breton wrote:
> Is it a function of Argyllcms to create this "effect"?
Hi Roger, there is nothing user accessible to change the choice of black point
in CMYK profile creation (no-one has ever asked me for such a thing). There are
a couple of programmatic choices, my original one being to pick a black that
had the same hue as K only, but at some prompting by users, I switched to
picking a black that has a consistent hue with white. In either case, there
can be a slight compromising of the the hue direction (0.5 DE) against minimum
L*, and those values can be changed programmatically.
I don't seem to have got Martin Orpen's post you attached. Using collink
-G creates a device link from the output profiles A2B table, so it re-generates
the profile inversion and black generation. There is a similar (but much less
sophisticated and less debugged program) <http://www.argyllcms.com/doc/revfix.html>
that re-generates a an ICC profiles B2A colorimetric table, allowing re-setting
of the black generation and ink limits.
Graeme Gill.
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