Hi,
I looked at the LCMS docs and it has nothing about vgct tags
lcms does currently NOT implement it because it is not on ICC spec.
Alas, I'm a bit critical on such practices. Using this kind of stuff will
make profiles "active" in the sense they are no longer a characterization
of the hardware but a way to set specific configurations. I have seen many times
desktops completely ruined by different software, each one trying to load
its own vgct profile. Also, this is hardly non-portable and very hardware
specific.
The whole point of this tag is specify a set of curves for loading the hardware
gamma ramp. But this puts hardware in "half way" since primaries are not
modified
at all, so the CMM has still some work to do. At that point I think this is useless,
since non-color managed apps will continue displaying wrong colors and
color-managed ones will continue processing the raster data. Exactly the same
amount of work that doing all conversion, including gamma ramp. Some people
would argue its is better half color management that nothing at all, but at that
point the topic is no longer on color management, so let's forgot the whole stuff.
I have added the tag signature in lcms.h, but quite probably this is all the
support
1.15 will include.
Regards
--
Marti Maria
The littlecms project.
www.littlecms.com
----- Original Message -----
From: "Hal V. Engel" <[EMAIL PROTECTED]>
To: <lcms-user@lists.sourceforge.net>
Sent: Sunday, October 09, 2005 10:09 PM
Subject: [Lcms-user] vgct tags
I would like to setup LPROF so that it will create vgct tabs in monitor
profiles. I looked at the LCMS docs and it has nothing about vgct tags
there so I am not sure where to begin. Does anyone here know anything about
this? If so could you point me to sources of information about this to help
me get started?
Thanks,
Hal
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