Re: Metamerism vs Color Constancy
Re: Metamerism vs Color Constancy
- Subject: Re: Metamerism vs Color Constancy
- From: Robin Myers <email@hidden>
- Date: Tue, 20 Sep 2005 05:22:00 -0700
On Sep 20, 2005, at 4:23 AM, Roger Breton wrote: I've been saying the same on several lists for the last year or so but getting nowhere. To most people now, metamerism means color change in different light (i.e. color inconstancy), unfortunately.
Bob Frost.
But it's true that there is such thing as "illuminant metamerism", the change in color appearance caused by a different source of light which causes two surface colors not to match anymore.
Yes, there is. In fact, the CIE has defined a metric for the condition called the "Special Metamerism Index: Change in Illuminant", documented in CIE Publication 15.2 "Colorimetry".
Robin Myers
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