In addition: AFAIK, ICC is now discussing a perceptual reference gamut, which would be printer-based. So, this would be not the maximum values but something like a "mean" gamut of printers.
Obviously having that well defined would be a great improvement. Gamut remapping should never more got across the infinite gamut of actual PCS, with all the pain this implies. Regards, Marti. ----- Original Message ----- From: "John Cupitt" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: "Lcms Liste" <[EMAIL PROTECTED]> Sent: Monday, June 07, 2004 7:19 PM Subject: Re: [Lcms-user] Lab color space for reflective media Kai-Uwe Behrmann wrote: > as far as I understand CIE*Lab is an way to describe colors, which may or > may not be physically existent. > My question is which is the colorspacebody of physically ideal > refrective media? What is the belonging gamut of Lab? > Is it possible to shrink such an colorspacebody to an special reflective > media? Mike Pointer has a database of physically realisable surface reflectances, ie. the LAB values of colours you can actually make and paint onto surfaces. I've googled, but failed to find a link, sorry :-( but maybe someone here knows a link to his work? > One way to calculate is to use XYZ as I would think it represents what is > phylically possible. (The horseshoe derives from it.) I think that would give you the colours you can make by mixing lights, which is a much larger gamut than surface reflectances. John ------------------------------------------------------- This SF.Net email is sponsored by: GNOME Foundation Hackers Unite! GUADEC: The world's #1 Open Source Desktop Event. GNOME Users and Developers European Conference, 28-30th June in Norway http://2004/guadec.org _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user ------------------------------------------------------- This SF.Net email is sponsored by: GNOME Foundation Hackers Unite! GUADEC: The world's #1 Open Source Desktop Event. GNOME Users and Developers European Conference, 28-30th June in Norway http://2004/guadec.org _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
