re: Is there any merit to the CxF format?
re: Is there any merit to the CxF format?
- Subject: re: Is there any merit to the CxF format?
- From: Chris Murphy <email@hidden>
- Date: Thu, 12 Jun 2003 10:35:14 -0600
On Thursday, June 12, 2003, at 07:26 AM, Roger Breton <
email@hidden > writes:
This is a question I ask in case some of you have already investigated
this
in their color research. I see that this XML-based 'flat color' file
format,
proposed by GMB, could be used by a number of applications to exchange
flat
color (or any color) information for the purpose of color reproduction.
Could I create a color palette in GMB's ColorPicker and have that
palette
recognized by Photoshop, InDesign, Illustrator, BEST colorproof?
My understanding of CxF is that there is a published schema (or DTD, I
don't know my XML terminology very well), and that's about it. So it's
not a closed proprietary format. If someone wants to support it, they
can support it. But I'm not sure who outside of GretagMacbeth is
currently supporting it.
And is this the same as a 'named color profile', in principle? Except
that
it is XML-based?
Kindof. A Name Color profile in ICC terms requires a name for the
color, and then an equivalent LAB (or XYZ?) value for that color. A
device value is technically optional. But the purported value of an NCP
in the ICC world is that it would contain device values for each of the
named colors, so that the exact RGB or CMYK values needed to best
simulate the named color are sent to the device instead of being
guessed at (computed).
CxF isn't going to have device values in it, but rather just a color
name and a spectral measurement. I haven't checked, but I think the
other difference is that CxF stores spectral data, while ICC NCP's
don't. Maybe CxF can also store LAB only or XYZ only, but again I
haven't checked.
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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