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Wrong Values for All the 2-Degree Illuminants #3

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baskerville opened this issue Apr 29, 2013 · 1 comment
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Wrong Values for All the 2-Degree Illuminants #3

baskerville opened this issue Apr 29, 2013 · 1 comment

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@baskerville
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It seems that all the 2-Degree illuminants defined by WHITE_REFERENCE are wrong,
e.g. D65 is specified as 0.95043, 1.00000, 1.08890, but the correct value is 0.95047, 1.0, 1.08883.

@xav xav closed this as completed in b3d8837 Aug 17, 2016
@xav
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xav commented Aug 17, 2016

I don't remember where I got the values from originally, but yes, some of them were wrong.
I used the chromaticity coordinated on wikipedia to calculate new ones with x=X/(X+Y+Z) and y=Y/(X+Y+Z).

The new values seem to differ from some source code found online, but then info on the subject is a bit hard to come by, so I'm not sure where they come from either.

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