Re: Chris Murphy vs Bruce Fraser
Re: Chris Murphy vs Bruce Fraser
- Subject: Re: Chris Murphy vs Bruce Fraser
- From: Steve Upton <email@hidden>
- Date: Tue, 18 Jul 2006 11:45:47 -0700
At 5:28 PM +1000 7/18/06, Graeme Gill wrote:
>Chris Murphy wrote:
>>You're making it sound like there is no difference between RelCol and AbsCol in both an ICC v4 soft proofing context, as well as a Photoshop context.
>
>As I said, I can't speak for Photoshop, but in ICC V4, there is no
>difference between RelCol and AbsCol for display profiles,
if I may interject here. I think you are talking about slightly different things.
Graeme is correct when referring to the ability to convert using abs col OR rel col FROM a monitor profile TO another profile. The results will be the same because the white point difference is removed in ICCv4 profiles. (also Photoshop now changes abs col conversions from non-D50 white-point v2 display/working spaces to be the same as rel col - a similar effect but not in the v2 spec)
Chris is correct that you can do abs col conversions FROM a (say) print profile to a display profile and you will receive a different white point than had you chosen rel col.
So abs col/ rel col FROM a display profile in v4 = no diff.... abs col/rel col TO a display profile in v4 = diff
yer both yelling at different ends of the same horse - I'll leave it to you guys to determine who is yelling at what end (-;)
Also - this "partially adapted user" thing. Chris, that's the first I've heard of it too. Do you have any references to tools that worked this way? It's certainly not in the v2 spec....
Regards,
Steve
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o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
o ColorGear ColorThink ColorValet ColorSmarts ProfileCentral
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