- From: Chris Lilley <chris@w3.org>
- Date: Tue, 30 Jan 2007 14:41:14 +0100
- To: "Grant, Melinda" <melinda.grant@hp.com>
- Cc: "www-style" <www-style@w3.org>
On Monday, January 29, 2007, 11:18:09 PM, Melinda wrote: GM> Any reason why the CSS3 Color Module GM> http://www.w3.org/TR/css3-color/ should reference the ICC Profile GM> Format Specification, version 3.2. 1995 rather than the latest GM> version, version 4.2 at http://www.color.org/ICC1v42_2006-05.pdf? No (just history - I think the reference got copied from PNG to SVG 1.0 to SVG 1.1 to CSS3 color, and was the current reference originally) Version 4.2, released in 2004 is the current deployed version and is also the version that became an International Standard, ISO 15076-1:2005: http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=40317&ICS1=37&ICS2=100&ICS3=99 (link is to an order form to buy a printed or PDF copy, not to the spec itself) GM> Or would it be preferable to refer to an undated current version? If ICC has a versioning policy such that that would be backwards compatible. I understand that older CMS can't read v.4 ICC profiles but can read v.2 and v.3 ICC profiles; new ones read all the current versions. I also understand that CMS are usually shipped with the OS (on Mac (ColorSync), Windows (ICM), Linux (lCMS) or installed with particular applications (eg the Kodak or Adobe CMSs) so a given machine is likely in practice to be upgraded when a new product (eg Photoshop, MS Office) is installed or, for consumer machines, when they buy a new machine. I say "I understand" because the available documentation tends to be consumer oriented and lacking in details. Microsoft ICM 2.0 http://www.microsoft.atat.at/presspass/press/1997/apr97/linopr.mspx http://www.nikondigital.org/news/ms_color_cpl/readme.htm http://www.microsoft.com/windowsxp/using/digitalphotography/prophoto/colorcontrol.mspx http://msdn.microsoft.com/library/default.asp?url=/library/en-us/icm/icm_9y9e.asp http://msdn.microsoft.com/library/default.asp?url=/library/en-us/icm/icm_3q5p.asp much of the Microsoft documentation has old dates, like 2001. I would be glad of pointers to more recent and more technically detailed documentation. Apple ColorSync 2.0 (this paper, last revised 2005 says that ColorSync "will be" fully ICC v4 compliant) http://developer.apple.com/technotes/tn/tn2035.html (1999 paper on ColorSync 2.6, which should cover all legacy Mac systems still running) http://developer.apple.com/technotes/tn/tn1160.html (ColorSync 3.0 paper, from 199 also - no mention of icc however) http://developer.apple.com/technotes/tn/tn1185.html (ColorSync on Mac OS X - 2005 - clearly states that it works with ICC v4 and earlier profiles) http://developer.apple.com/technotes/tn/tn2035.html Linux lcms clearly states that it supports 4.2 http://www.littlecms.com/about.htm The CMS in Windows Vista is supposed to be a big improvement. In general (to get back to your question) it seems to be the right thing to update to the current version, it may be ok to go for "this version or higher" and I would prefer to have more hard facts to go on. I have a couple of enquiries going and will report back. At this point I am mainly concerned with when Microsoft ICM 2.0 was updated and to check what version of ICC profiles is supported in the version that ships today (XP SP2). -- Chris Lilley mailto:chris@w3.org Interaction Domain Leader Co-Chair, W3C SVG Working Group W3C Graphics Activity Lead Co-Chair, W3C Hypertext CG
Received on Tuesday, 30 January 2007 13:41:25 UTC