Re: Questions about the UI at 1.8 gamma
Re: Questions about the UI at 1.8 gamma
- Subject: Re: Questions about the UI at 1.8 gamma
- From: John Zimmerer <email@hidden>
- Date: Mon, 21 Jun 2004 12:54:33 -0700
Chris,
The same spec recommends that the ambient viewing conditions match the
encoding, which means 64 lux. I quoted it for your convenience in an
earlier post.
And my position is that most viewing environments, not just "offices",
are much brighter than 64 lux.
I'm sure the majority of your customers work with windows shining into
the workspace, overhead lighting, usually a desk lamp, sometimes a
tabletop light box, etc. Add them up, and 200 lux is at the low end of
the bell curve.
JZ
On Jun 21, 2004, at 8:07 AM, Chris Murphy wrote:
On Jun 20, 2004, at 10:58 PM, John Zimmerer wrote:
Danny,
According to Microsoft, "bright" is anything greater than 64 lux.
That doesn't take much -- 64 lux is a little brighter than the light
output of a single 35W Solux bulb placed about 10 feet away from the
front of display. Not many people work in a room that dark.
John, sRGB documents a typical ambient illuminance level of 200 lux,
and "is intended to be representative of a typical office viewing
environment." There is a difference between encoding ambient
illuminance level, and typical ambient illuminance level, that's why
the spec mentions them and their differences.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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