Re: Betterlight Camera Calibration
Re: Betterlight Camera Calibration
- Subject: Re: Betterlight Camera Calibration
- From: Karsten Krüger <email@hidden>
- Date: Sat, 4 Oct 2008 23:57:05 +0200
Am 04.10.2008 um 21:05 schrieb Marco Ugolini:
Karsten Krüger wrote:
When looking at a painting you will hardly ever find an area with
solid colors like on a Color Checker. Propably two or three original
colors are allways mixed together at a certain location on a
painting.
So a clear reading of a single color is nearly impossible.
I don't think it would be necessary to find areas in the painting
with a pure primary (an unmixed pigmented paint).
What I think would suffice would be a sufficient number of areas of
*flat* color, whether mixed or unmixed. Then the question would be
*how many* of these sampled areas of flat color constitute a
representative sample of the whole range of colors in the artwork.
I guess it is hard to find *flat* colors, too.
Also, paint has a geometric component, due to its thickness and the
angle at which it's viewed -- a raised glob of paint has many
surfaces, and the angle at which each facet of that raised glob is
viewed influenced the perceived color. I would think that that is an
even tougher thing to measure and reproduce properly.
I totaly agree. And a camera has the same problems.
Karsten _______________________________________________
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