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RE: a strange scanner profile
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RE: a strange scanner profile


  • Subject: RE: a strange scanner profile
  • From: "shAf" <email@hidden>
  • Date: Thu, 8 Feb 2001 08:43:02 -0800

David Tobie writes ...

> In a message dated 2/7/01 11:58:51 AM, email@hidden writes:
>
> > I have just discovered an ICM file which PS6 treats
> > differently than did PS5.
> > ...

>
> Yes, Photoshop 5 would only allow similified matrix spaces
> to be used as RGB workingspaces, but Photoshop 6
> will allow much larger, more complex 3d look-up table
> profiles to be used for viewing RGB files as
> well. Their are various theories about the potential value
> ...

I have just plotted the RGB primaries for this 3D LUT profile (as
calculated and displayed by PS6), for comparison with other working
spaces. My first question would be ... "Is this a fair comparison, or
is it really an "apples vs oranges" type of over-simplistic
comparison?"

If it is a fair comparison, and its color space parameters are
closely matched by Ektaspace, is it fair to say it is as good a
working (editing) space as Ektaspace, or is it better to assume
Ektaspace is the best highbit and archival working space for this
device space?

Just as an aside ... I notice while plotting these common working
spaces, those which have been generally accepted approach equilateral
symmetry. Can "asymmetry" be an indicator that some adjustments in
some spaces might take on a change of hue??

shAf :o)


References: 
 >Re: a strange scanner profile (From: email@hidden)

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