Re: Real-world RGB numbers for the ColorChecker SG
Re: Real-world RGB numbers for the ColorChecker SG
- Subject: Re: Real-world RGB numbers for the ColorChecker SG
- From: Roger Breton <email@hidden>
- Date: Thu, 23 Jun 2005 20:11:31 -0400
>> Suppose you choose the easy path and work with Lab values, the easiest is
>> to
>> build your chart in Lab in Photoshop and then convert RelCol to your RGB
>> profile of your choice, say AdobeRGB or BetaRGB or ProPhotoRGB.
>
> Yes indeed, but what exactly is the procedure.
> In other words, how is it done?
>
> Richard
Do you want me to explain how to draw squares in Photoshop, and fill them
with some known Lab values? Or you want me to explain how to measure an
actual SG chart with a spectrophotometer? Or you want me to explain how to
convert from Lab to RGB in Photoshop? Which part are you not getting?
Regards,
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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