Re: Manually creating a CLUT to calibrate a monitor
Re: Manually creating a CLUT to calibrate a monitor
- Subject: Re: Manually creating a CLUT to calibrate a monitor
- From: Dan Reid <email@hidden>
- Date: Sun, 04 Apr 2004 12:02:58 -0700
on 4/3/04 11:09 AM, Roger Breton at email@hidden wrote:
>
Would anyone know of a tool, on MacOSX or Windows, to manually create a
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Video LUT? That would be used for manually calibrate a monitor visually? I
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would like have the ability to setup the chromaticities of the white point
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first, with some target illuminant, say D50. Then, once I9m satisfied with
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that I would then work my way through from the white to the black, balancing
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the grayscale. I9d tweak the RGB values until I get a good visually neutral
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gray scale. Ideally, each gray step would have the same chromaticities as
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the white point.
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I have never seen such a tool. I9m sure there is a way to write a C program
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to do this but I don9t feel strong enough in programming to embark on such a
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project, just yet. I know this kind of calibration is what all the monitor
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calibration packages do for a living, some better than others. To some
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extent, MonacoOptix XR Pro and basICColor Display and OptiCal work off this
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principle and allow such user tweaking of the gray balance, after the fact.
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I9d like to have full control on the process from the beginning.
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BTW, even though the above packages allow tweaking the curves after the
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fact, none of them allow to effect the white point directly, through their
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curves. I have never tried editing a matrix/shaper profile white point in
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GMB ProfileEditor? I seem to remember that it9s not possible.
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>
Roger Breton | Laval, Canada | email@hidden
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http://pages.infinit.net/graxx
>
BasICColor Display allows tweaking of the white point through curves to
visually match viewing booths.
Ideally Monaco OptixXR and BasICColor have been able to gray balance your
monitor with a colorimeter better than your eye but you do have the ability
to tweak the curves if you're a tweaker. <g>
--
Dan B. Reid
RENAISSANCE PHOTOGRAPHIC IMAGING
Color Management Products & Training for Print, Internet, & Motion Graphics
http://www.rpimaging.com | Toll Free: (866) RGB-CMYK
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