Re: MS Color Control Applet
Re: MS Color Control Applet
- Subject: Re: MS Color Control Applet
- From: Marco Ugolini <email@hidden>
- Date: Tue, 27 Jun 2006 09:16:11 -0700 (GMT-07:00)
In a message dated Jun 27, 2006 2:30 AM, Olivier Desmaison wrote:
>Thanks for this reply. I agree nothing can really be taken for granted.
>Meanwhile, I use X-RITE ColorGamut usually to check on gamuts : the view in
>it shows that Prophoto is "larger" in all ways than AdobeRGB, and
>encompasses it all. This added to "common acceptance" about Prophoto puzzles
>me. I have found a possible explanation in the need to adap white point
>(Prophoto is D50 while Adobe RGB is D65), but I believe the graph would not
>show the way it does : it would be a more "total gamut shift" (to express it
>the best I can).
Hi again.
When comparing color spaces on a 3D graph, I think the correct way is to use the absolute colorimetric rendering intent (which is the way ColorThink does it), that is to say, *not* to adapt the white point, and certainly not to perform any black point compensation.
I do not use X-RITE ColorGamut, but it seems from what you write that it uses RelCol, possibly with BPC.
Regards.
--------------
Marco Ugolini
Mill Valley, CA
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