Re: RGB Printer Profiling with ColorBlind
Re: RGB Printer Profiling with ColorBlind
- Subject: Re: RGB Printer Profiling with ColorBlind
- From: Andrew Rodney <email@hidden>
- Date: Wed, 28 Mar 2001 07:02:28 -0700
on 3/28/01 2:48 AM, Darrin Southern at email@hidden wrote:
>
This process seems to drop the black channel entirely. The other issue is
>
that it all depends on what RGB space I have set in my color prefs, for when
>
the Channels are merged back to RGB, the color patches have different
>
values, for AdobeRGB or sRGB (I know not to use sRGB, but it highlights the
>
fact of RGB not being device indepentant).
You don't want to do any conversions (this is the one place where Color
Management OFF is actually effective). RIP the EPS and if you get a Missing
Profile, just use off and you'll get an untagged CMYK file to split and
merge.
Remember too that Photoshop 6 will assume an untagged file to be in whatever
RGB Working Space you set in your color settings and will use that for
preview (and conversions) but if the file really does come in without a
conversion, the numbers are what is expected from ColorBlind.
I talked to my friends at ColorBlind awhile back asking them WHY they simply
don't supply the targets in RGB on a CD (at least for Matchbox which only
has a 300 patch option). One time I actually tried to make a Photoshop
Action that would do all this work for you but it wouldn't work for the
total process since after splitting the file, Photoshop thinks we have a new
document (which we do) and the action can go no farther. Haven't tried it in
Photoshop 6 but I don't think it would work any better.
Andrew Rodney