Re: Neutral grey under different lighting
Re: Neutral grey under different lighting
- Subject: Re: Neutral grey under different lighting
- From: Richard Wagner <email@hidden>
- Date: Mon, 3 Sep 2007 19:27:50 -0700
Andrew,
If you have one set of colored objects that you are talking about
(e.g., pigments or dyes), you can't have "metameric failure" since
there is no possibility of "metamerism" in the first place. I think
the expression "metameric failure" is almost as frequently misused as
metamerism.
--Rich Wagner
On Sep 3, 2007, at 12:03 PM, email@hidden
wrote:
On 9/3/07 12:47 AM, "Marco Ugolini" wrote:
*Metamerism* is the effect whereby *two* colored objects built
with colorants
of different spectra appear to match one another colorimetrically
under a
given illuminant. It's a *positive* effect, not one that should be
avoided.
Without metamerism, the only way to match a target color would be
to create it
with exactly the same pigments and materials.
Very true. Its both our friend and our enemy. A metameric failure
is one
most users talk about and is also possible. Color Inconsistency as you
discuss is also referred to as a metameric failure and I think that
term is
acceptable.
Andrew Rodney
http://www.digitaldog.net/
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