D65 Coordinates wrong?

[anonymous SourceForge]

The reference white D65 XYZ coordinates in the
report below are {95.05,100,108.91}, as viewed
in Safari. Those coordinates are slightly wrong.

Explanation?

Report:

http://s000.tinyupload.com/index.php?file_id=29649570079727924087

[Florian Höch]

They’re not wrong, they’re rounded to two digits.

[anonymous SourceForge]

Thank you. I turns out that the numbers given on Bruce Lindbloom’s page are slightly different. He has 1.08883 for the final coordinate, which when scaled is 108.883. However, I have calculated from first principles the correct value, based on the D65 coordinates in the Rec.709 recommendation, and that value agrees with your value.

The Lindbloom page:

http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html

Thank you.

[Florian Höch]

Yes, Bruce Lindbloom has ASTM E308-01 values on his page, and there are other works which use slightly different values (Wyszecki & Stiles quote 0.95017 1.0 1.08813). The chromaticity used in Rec. 709 leads to the values shown in the measurement report, because they’re encoded in the Rec709.icm profile.

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