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Re: ProPhoto RGB an ROMM-RGB in Photoshop
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Re: ProPhoto RGB an ROMM-RGB in Photoshop


  • Subject: Re: ProPhoto RGB an ROMM-RGB in Photoshop
  • From: Klaus Karcher <email@hidden>
  • Date: Thu, 24 Aug 2006 21:55:43 +0200

Andrew Rodney wrote:
I'm simply opening each in Photoshop's "Custom" dialog within the Color
Settings and both the white point (D50) and primaries reported are
identical.


Gamma 1.8
White Point D50 (x 0.3457, y 0.3585)

The (relative) x and y values are the same (D50)
x=X/(X+Y*Z)=0.3457 and y=Y/(X+Y*Z)=0.3585 in both cases, but the absolute XYZ values differ (factor 0.89)


Even the xy primaries of both profiles I have are the same as reported by
Photoshop.


Unless of course we're looking at different profiles here....
I don't think so.

... another difference: ProPhoto RGB is a Display Device Profile, (class "mntr"), ROMM-RGB is a Output Device Profile (class "prtr")

Klaus
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 >Re: ProPhoto RGB an ROMM-RGB in Photoshop (From: Andrew Rodney <email@hidden>)

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