Re: [Lcms-user] Using Eye One Display for colour measurements?

[Greg <sul...@in...>]

Marti,
> Another difference is the use by Gretag profile of a special tag called
> 'vcgt'  (which stands for 'video card gamma tag' ) Profiles using
> that does need a loader, and modifies the hardware gamma ramps.
> I am trying to avoid this entirely on all lcms library and tools, since
> that affects ALL applications, and not only those explicitly
color-managed.

Personally, I do not think it's necessarily a good idea to try and avoid
this.
The gamma table is only for display *calibration*, and surely it is better
to have a
display which is more accurately calibrated? For example, if we calibrate to
a known standard such as sRGB, *non* colour managed applications will
display colour more accurately, because most images today are assumed
to be in the sRGB space. So, if the gamma tables are loaded into the
display,
creating a very accurate gamma of 2.2 for all three channels, that surely
has
no drawbacks whatsoever. Yes? Similarly, if the gamma tables are used to
*calibrate* the whitepoint (for example, if the monitor doesn't have any
controls
to set the whitepoint), that again is an advantage, with no downside at all.

Greg.