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Re: Converting Lab to sRGB using AbsCol looks suspicious
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Re: Converting Lab to sRGB using AbsCol looks suspicious


  • Subject: Re: Converting Lab to sRGB using AbsCol looks suspicious
  • From: Roger Breton <email@hidden>
  • Date: Thu, 05 Feb 2004 13:23:27 -0500

>> I know it9s not your typical color conversion but converting a neutral
>> scale
>> from Lab to sRGB or AdobeRGB with an AbsCol intent looks awfully
>> yellow to
>> me? RelCol does not do that. Is D50 that yellow?
>
>
> Relative(!) to D65/6500K it is, I'm Absolutely certain!
>
> Have a nice 5000K day,
> Terry

Thank's Terry and C.Dd, for you always enlightening replies.

What strikes me, though, is that when I look at the light outside of my
studio right now (1:00 pm) I don't have the impression that the light is
that yellow? And I know for a fact, for having measured this light over and
over so many times over in the past, that this light is unlike 6500K. In
fact it's always between 5200K to 5500K. I know color is next to impossible
to relate acurately in words but the color sensation I am getting from
starting at at white surface lit by direct sunlight right now is not as
yellow as Photoshop would have me believe by converting absolute
colorimetrically a D50 Lab 'white' to a D65 'white'. And no, I have a
Munsell FW-100 hue test here and I am glad to report that, despite the
coutless hours I have torn my eyes looking at jobs and retouching images in
Photoshop on a CRT in the past, I still enjoy a normal color vision.

Regards,

Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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  • Follow-Ups:
    • Re: Converting Lab to sRGB using AbsCol looks suspicious
      • From: bruce fraser <email@hidden>
    • Re: Converting Lab to sRGB using AbsCol looks suspicious
      • From: Steve Upton <email@hidden>
References: 
 >Re: Converting Lab to sRGB using AbsCol looks suspicious (From: "Terence L. Wyse" <email@hidden>)

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