Re: CIEDE2000 and CIELUV versus CIELAB
Re: CIEDE2000 and CIELUV versus CIELAB
- Subject: Re: CIEDE2000 and CIELUV versus CIELAB
- From: Steve Upton <email@hidden>
- Date: Thu, 27 Dec 2007 16:09:35 -0800
At 11:50 AM -0500 12/26/07, Roger Breton wrote:
> > Also, if you want to see what kinds of differences we are talking about, go
>> to Bruce Lindbloom's site <http://brucelindbloom.com/> and navigate to the
>> color difference calculator. Put in any pair of colors and you will see the
>> color difference as calculated by many of the formulas. The differences you
>> will should be a good indication of why you need to specify which formula
>> you used..
>
>I'm aware of the differences between dEab and dE2000 (and 94). I've been
>tracking the colorimetric stability of a pair of Epson printers for the last
>16 monts through an ECIr chart. If I plot the dE over time using the ab
>formula, I get much worse result than if I use the 2000 or 94 formula. The
>worst offender is the yellow, followed by magenta, cyan and black.
Go git em Roger! ;-)
One point that I rarely see mentioned but raised my interest was that the CIE officially recommends discontinuing use of dE94 and moving to dE2000.
That helped me firm up our use of 2000 as a more permanent method rather than a 'pending acceptance' method as it is often referred to.
It was 7 (almost 8) years ago after all...
Regards,
Steve
________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
________________________________________________________________________
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