Re: Eizo CG 21 and Eye-One
Re: Eizo CG 21 and Eye-One
- Subject: Re: Eizo CG 21 and Eye-One
- From: Chris Murphy <email@hidden>
- Date: Sat, 23 Apr 2005 11:53:52 -0600
On Apr 23, 2005, at 10:59 AM, Roger Breton wrote:
Rather, this is done internal to the display itself.
I have to disagree here, Chris. CN does NOT gray balance the Eizo in
any
way, shape or form. It merely sets the gamma of each channel but does
NOT
gray balance them, as basICcolor Display v3+ does. Which is why, in my
view,
CN software has limited valued.
It's a question of method rather than whether it is or is not done
internally. It is done internally but the methods differ. Theoretically
if you set white and black point for each channel correctly, the same
gamma for each channel should produce gray (assuming the primaries are
properly paired up to do that). The basICColor and ColorEyes gray
balance method is iterative, and allows for separate tone correction
for each channel.
But something else I've noticed is that these table-based display
profiles that are supposedly better, cause profile induced
posterization and gray balance crossovers. I won't see it in a
non-color managed gradient, but will see it in a color managed one,
when using table-based profiles, but not in matrix-based ones.
I can see how the secondary colors would be more accurate with a
table-based profile, so if that's more important to you than smooth
neutrals, then that's the way to go. Otherwise, stick with matrix-based
display profiles.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
-------------------------------------------------------------
Co-author "Real World Color Management, 2nd Edition"
Published by PeachPit Press (ISBN 0-321-26722-2)
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