Re: painting a room
Re: painting a room
- Subject: Re: painting a room
- From: Roger Breton <email@hidden>
- Date: Mon, 21 Jul 2003 09:35:18 -0400
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This is pretty far removed from colorsync, but is about color
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management and probably some color geek will have an opinion on it...
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...So the approximately white walls in the apartment are pretty drab,
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needing some good fresh color. So I snap some pictures, load into
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photoshop, create a good mask for the walls and start virtual painting.
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(I've found that desaturating the walls then, using a solid color
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layer with a linear burn blending mode and fiddling with the color and
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the blend & fill levels provides the most realistic looking results.
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The color burn mode works well, but seems best for simulating a gloss
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paint. Anybody with a better technique, let me know.)
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Anyway, on to the color geek question...so I've got my room virtually
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painted with something that looks great. How do I go from photoshop
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colors to a paint recipe? In particular, the luminosity obviously
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varies across the virtually painted surface, so I have to account for
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that. And since I have NO experience with getting custom paint mixes,
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what sorts of numbers can paint shops work with, or is it all some
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proprietary system?
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-john
As far as I know, most paint stores uses spectrophotometers online with some
paint formulating software. To my knowledge, they're all based on matching
the spectral distribution of the color measured with a series of paint
primaries. So, I don't think their system could work off a CIE Lab
description since that is devoid of spectral data. Your best bet maybe to
compare paint samples to your monitor and base your decision on a visual
assessment?
Also, keep in mind that there are inter wall reflections that you won't
(easily?) be able to model in Photoshop. For example, I actually painted one
wall room in my house with some ochre and the other walls and the ceiling in
some red. As a result, I never got the pure ochre I envisionned in that room
because the ochre wall is "tainted" with red reflections coming from the
other walls and ceiling.
Regards,
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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