Re: philosophy of color
Re: philosophy of color
- Subject: Re: philosophy of color
- From: email@hidden
- Date: Sun, 25 Jan 2004 20:29:28 EST
In a message dated 1/25/04 5:30:21 PM, email@hidden writes:
>
I wonder, if there is no one to see it, is the tree green?
>
>
I think I understand this color thing a little. At least enough to
>
realize that an object does not have an absolute color. I ponder
>
that if color is a relationship between observer, object and light
>
then when you change any one of these then the color changes too. So
>
an apple in the dark is not red. Correct?
>
The tree is not green. An apple, even in the *light* is not red either... it
absorbs some wavelengths of light, and reflects others... but the resulting
combination of wavelengths isn't red. It requires a human observer, or that
imperfect color construct, the CIE Standard Observer, to translate quantities
of
various wavelengths into color, or a theoretical estimation of color, in the
latter case.
C David Tobie
Product Technology Manager
ColorVision Inc.
email@hidden
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