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Tri-stimulus values as a PCS

Tri-stimulus values as a PCS

2006-05-16 by Tom

Perhaps this isn't the right place for it but ...

Is there any relative advangage / disadvantage to using tri-stimulus
CIE XYZ values as a profile connection space?  Certainly its not the
best for gamut mapping but simply for translating colors does it matter?

Re: [colorvision_group] Tri-stimulus values as a PCS

2006-05-16 by CDTobie@aol.com


In a message dated 5/16/06 8:51:46 AM, ttrostel@... writes:


Perhaps this isn't the right place for it but ...

Definately not...

Is there any relative advangage / disadvantage to using tri-stimulus
CIE XYZ values as a profile connection space? Certainly its not the
best for gamut mapping but simply for translating colors does it matter?

XYZ has advantages for monitor and monitor-like connection spaces, such as one channel (Y) being the luminance component, thus leaving only two variables to describe colors, and that Y channel being the same Y as in xyY, allowing colors to be described in xy values. It is not an appropriate connection space for print purposes, which is why output profiles use L*a*b*.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com

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