Color accuracy in copying paintings
Color accuracy in copying paintings
- Subject: Color accuracy in copying paintings
- From: "Tony Riley" <email@hidden>
- Date: Sat, 20 Jul 2002 09:27:00 +0100
Joseph - (Re: colorsync-users digest, Vol 3 #311 - Scan Back Repro Copy )
With respect, and my comments are directed to the list rather than your post
specifically, I'm just quoting you because you identify the points very
well!
>
BetterLight (BL) and PhaseOne (P1) make good scan back cameras for Repro
Copy work.
Yes, but 'copy' meaning 'copying' cmy dyes in photographs, not pigments in
paintings. Its not the same.
>
P1 believes that they a have color technology that replicates the human eye
(theoretical).
If it did it wouldn't reproduce cmy dyes so well. We 'see' rgb rather than
cmy.
>
The short comings of Art Repro Copy work will come from your output
device(s).
I suspect not mainly. I think the shortcomings in reproducing rgb pigments
in paintings (i.e. not cmy dyes in photographs) as far as color accuracy
goes, comes from the 'optimisation' of the input device (line scan ccd)
towards cmy.
As I said in my previous post, this is why an area array camera (not based
on line scanner technology, and optimised for rgb response instead) will
give more accurate color reproduction (of painting pigment). I'm not
disagreeing that line scan may be vastly superior in terms of bit depth,
resolution and so on, I'm referring purely to accurate reproduction of color
in paintings.
Tony Riley
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