Re: Monitor profile verification [was: Eye One Pro for monitor calibration? [was: Re: NEC 2690 SpectraView]]
Re: Monitor profile verification [was: Eye One Pro for monitor calibration? [was: Re: NEC 2690 SpectraView]]
- Subject: Re: Monitor profile verification [was: Eye One Pro for monitor calibration? [was: Re: NEC 2690 SpectraView]]
- From: Roger Breton <email@hidden>
- Date: Sun, 02 Dec 2007 10:37:52 -0500
Marco,
> 1) Internal consistency: is the profile producing values close to the ones
> expected according to the measurement device used to create it?
>
> 2) Absolute accuracy: how closely do the colorimetric values predicted by
> the profile match the colorimetric values actually measured by a
> *reference-grade* instrument?
>
> Marco Ugolini
I hadn't thought about looking at monitor's evaluation that way but I have
to agree it makes conceptual sense.
One thing I would like for monitor's profiling maker to go further with in a
close future is to build CIECAM-type of approach. For example, I'd like to
know that not only the chromaticity of the stimulus I'm staring at on my
monitor is close the chromaticity expected or predicted by the monitor
profile (seems that is where we are today) but also that the appearance of
this stimulus also matches the expected appearance of the stimulus. Now I
know that basICcolor Display and ColorEyes Display pro do offer some CIECAM
function along those lines under chromatic adaptation but I wonder whether
we have the right instrumentation today to go further than that? We need to
operationally define the surround and measure that with with what we have,
and so on. It is clear to me that we need to bring in more variables from
the observing conditions than what we have today unless, as do the
ISO-12464:2004 folks, we define the set of viewing conditions and that
serves to set what our state of adaptation is. But we know from
correspondance on this List that no everyone subscribe to this notion that
we should manage our viewing environment to correspond to a dim viewing
environment. What can we say, scientifically, about all those folks who view
their monitors in typical office kind of lighting aka 500+Lux? What can we
say of the designer who's Apple 23" ACD is calibrated @140cd/m2 to D50
chromaticities but is not fortunate enough to have decent daylight
simulators to view hardcopies next to his monitor?
Many questions... Sorry. When I start only my wife can stop me ;-)
Roger Breton
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden