Re: Quark and an RGB workflow
Re: Quark and an RGB workflow
- Subject: Re: Quark and an RGB workflow
- From: Chris Murphy <email@hidden>
- Date: Sat, 14 Jun 2003 00:05:59 -0600
On Friday, June 13, 2003, at 11:00 PM, Paul Sherfield
<email@hidden> writes:
The RGB working space is S-RGB or Adobe RGB. The file format is J-PEG.
We
have removed the colour management extension from all copies of QXP.
1.
"working space" is an Adobe term. It applies only to Adobe
applications, so I'm not sure in what context you mean it when talking
about QuarkXPress. Are *all* of the images placed in a given
QuarkXPress document either sRGB or Adobe RGB? It doesn't make any
sense to me to mix and match these in a single document because Dalam
isn't going to be able to distinguish them, since any embedded profiles
in these placed JPEGs does not survive when PostScript is generated by
QuarkXPress.
2.
I'm not aware of any difference in JPEG handling in the two versions of
QuarkXPress, but JPEG is lossy and will change the color in files. I'd
do a test by placing TIFF in both versions of QuarkXPress and see if
that makes a difference.
However we are getting differing colour results on the proofs when when
going from QXP 4.0 as apposed to going from QXP 4.1!! The QXP 4.0
seems to
be the accurate version! The only difference I can see in the ps
drivers is
that QXP 4.0 only has a composite option in output, while QXP 4.1 has
an
composite RGB option.
I had to do quite a few tests of QuarkXPress 3, 4 and 5 (specifically
3.32r5, 4.1, 4.1.1, and 5.01) for RWCM, and can say without a doubt
that an RGB TIFF placed in any of these versions comes out in
PostScript with values intact. I only tested JPEG in the context of
testing RGB to CMYK conversions to see if they came up with the same
values as a TIFF.
How far off are the images from 4.0 and 4.1? And do you mean 4.0.0? I
didn't think anyone got that to work. Surely you mean 4.03 or 4.04?
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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