Manually creating a CLUT to calibrate a monitor
Manually creating a CLUT to calibrate a monitor
- Subject: Manually creating a CLUT to calibrate a monitor
- From: Roger Breton <email@hidden>
- Date: Sat, 03 Apr 2004 13:09:32 -0500
Would anyone know of a tool, on MacOSX or Windows, to manually create a
Video LUT? That would be used for manually calibrate a monitor visually? I
would like have the ability to setup the chromaticities of the white point
first, with some target illuminant, say D50. Then, once I9m satisfied with
that I would then work my way through from the white to the black, balancing
the grayscale. I9d tweak the RGB values until I get a good visually neutral
gray scale. Ideally, each gray step would have the same chromaticities as
the white point.
I have never seen such a tool. I9m sure there is a way to write a C program
to do this but I don9t feel strong enough in programming to embark on such a
project, just yet. I know this kind of calibration is what all the monitor
calibration packages do for a living, some better than others. To some
extent, MonacoOptix XR Pro and basICColor Display and OptiCal work off this
principle and allow such user tweaking of the gray balance, after the fact.
I9d like to have full control on the process from the beginning.
BTW, even though the above packages allow tweaking the curves after the
fact, none of them allow to effect the white point directly, through their
curves. I have never tried editing a matrix/shaper profile white point in
GMB ProfileEditor? I seem to remember that it9s not possible.
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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