Load ramps
Load ramps
- Subject: Load ramps
- From: lensartgallery <email@hidden>
- Date: Sat, 15 Feb 2003 12:23:51 -0800
on 2/14/03 8:25 AM, email@hidden at
email@hidden wrote:
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Message: 14
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Date: Fri, 14 Feb 2003 10:23:39 -0600
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Subject: Re: Gamma values on Windows XP
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From: "Bruce J. Lindbloom" <email@hidden>
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To: ColorSync User List <email@hidden>
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CC: <email@hidden>
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I wrote:
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> 4) Always load your VLUTs with ramps and keep them there.
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>
Craig Payne asked:
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> How do I do this?
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>
I'm not that much of a Windows jockey, but here is one way to load ramps
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into the VLUTs (I don't know how to "keep them there"). I'm sure there are
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better ways to do this -- you ask someone who is more familiar with color
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management on Windows.
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Start with an ICC profile that has a ramp 'vcgt' tag. I can provide you one
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if you need it.
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Place this profile in:
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C:\WINDOWS\SYSTEM32\SPOOL\DRIVERS\COLOR\
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Set this profile as the default:
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Control Panel
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Appearance and Themes
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Display
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Settings
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Advanced
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Color Management
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Add...
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(select the ramp profile)
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Set As Default
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Then use the Adobe Gamma Loader to load the VLUTs:
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C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader
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My tests have shown that Adobe Gamma Loader only works if the 'vcgt' tag
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contains a "table" type of 'vcgt' tag. It does not appear to work with a
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"formula" type of 'vcgt' tag. Does anyone else have any experience with
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this?
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Again, there is probably a MUCH easier way to do this (anyone?).
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--
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Bruce J. Lindbloom
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email@hidden
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http://www.brucelindbloom.com
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