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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 20:22:03 +0200

email@hidden wrote:

Klauss, could you expand on "leads to different results"?


I recognized that ROMM-RGB has completely different Whitepoint:

X: 0.8581
Y: 0.8900
Z: 0.7342

This may conform to the spec "The reference medium is defined as a
hypothetical print on a substrate specified to have a neutral
reflectance of 89%" (http://www.color.org/ICCSpecRevision_22_02_05_PRMG.pdf)

But ProPhoto RGB uses
X: 0.9642
Y: 1.0000
Z: 0.8249

Regards,
Klaus


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