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Re: [CSS21] [css3-color] colorimetry references

From: Etan Wexler <ewexler@stickdog.com>
Date: Thu, 16 Sep 2010 20:25:23 -0400
Message-ID: <AANLkTi=0yREeeTppY3FK1W7BCEu9FBtPxVcC2nff1Gmw@mail.gmail.com>
To: www-style@w3.org
Date: Thu, 16 Sep 2010 15:04:55 -0400
Subject: Re: [CSS21] [css3-color] colorimetry references
From: Alan Robertson
To: Etan Wexler

Dear Etan:

Please feel free to copy this reply to the list but do not include my
e-mail address as I do not wish it to appear on a public archive where
it might be harvested.

The 2nd edition of CIE Publication 15 is out of date but the 3rd
(15:2004) is not. CIE Publications are Technical Reports on which
Standards may be based. The S014 series of Standards are based on
Publication 15:2004 and are compatible with it but do not supersede
it. Publication 15 contains a lot of material that is not in the

Under an agreement between CIE and ISO, these Standards (and others in
the field of lighting) are developed and published by the CIE and are
then fast-tracked through the ISO approval process before becoming
joint Standards. They can be purchased from either CIE or ISO.

Part 3 of the series deals with the calculation of tristimulus values
and is in the final stages of the CIE approval process.

I was not aware that the CIE and ISO websites disagree on the titles
of these Standards and do not know why this should be. The Standards
are supposed to be identical.

CIE TC 1-57 (Standards in Colorimetry) is currently working on a
Standard dealing with the CIEDE2000 colour-difference formula. This
will be based on CIE Publication CIE 142-2001 and will, if approved,
become Part 6 of the S014 series.

I hope this helps.

Alan Robertson
Chair, CIE TC 1-57
Received on Friday, 17 September 2010 00:25:52 UTC

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