Re: Preserving the black channel
Re: Preserving the black channel
- Subject: Re: Preserving the black channel
- From: email@hidden (Lee Blevins)
- Date: Sun, 14 Apr 2002 09:13:01 -0400
- Organization: Digital Graphics, Inc.
>
Color servers like iQueue and Helios as well as many RIPs have a
>
switch that disables matching for R0 G0 B0 and K 100%. However, if
>
you define pure black as L 100 a0 b0 then by the nature of the game
>
you are saying that your blacks must be matched to composite CMYK
>
black.
0,0,0,100 (cmyk) would not be L 100, a0, b0 from what I understand of
that color model.
Perhaps 100,1001,100,100 would but 0,0,0,100 would certainly be lighter.
I'm starting to think that what we need is not possible through a color
managed inkjet worklow.
As others have stated we should turn off the profiling and try to
linearize the output device.
This is the technique we've used for decades in graphic arts.
Unfortunately, the hues of the colorants make this not work since they
don't match our "standard" process colors.
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