Re: EIZO ColorNavigator, HP Advanced Profiling Solution and scene-referred profiles
Re: EIZO ColorNavigator, HP Advanced Profiling Solution and scene-referred profiles
- Subject: Re: EIZO ColorNavigator, HP Advanced Profiling Solution and scene-referred profiles
- From: Graeme Gill <email@hidden>
- Date: Thu, 05 Feb 2009 14:37:13 +1100
Herman Teeuwen wrote:
Apparently there's a bug in older EIZO ColorNavigator software that somehow
incorrectly 'labels' profiles as scene-referred.
Any idea technically, what constitutes such a label ?
(ie. is it a standard or private ICC tag, or what ?)
Here's the thread on the Adobe forum:
http://www.adobeforums.com/webx?128@@.59b7b37c
The thing not mentioned is that this is mostly about
viewing conditions. The "scene referred" profiles assume bright
viewing conditions, and the "output referred" profiles assume
dim viewing conditions, and transferring one to the other
you therefore need to make an adjustment to get the same
appearance.
BTW, here's a link to a good explanation on scene-referred compensation:
http://provideocoalition.com/index.php/cmg_keyframes/story/scene_vs_display_
referred_profiles/
True scene referred images often need a lot of other processing,
(tone mapping) as they are high dynamic range as well. Something
like NTSC and REC709 have as limited a dynamic range as output devices,
and therefore gamut mapping in an appearance space is all that's needed.
Graeme Gill.
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