[argyllcms] Re: i1pro wrong XYZ values
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 12 Feb 2009 18:34:17 +1100
Jörg Koch wrote:
I measured color patches on my notebook LCD using the i1pro and
experienced much higher absolute XYZ values when comparing these
measurements with the measurments using the i1pro x-rite drivers +
software. When measuring with the sypder3 using spyder3 software I get
similar values than the i1pro with the x-rite software, thus there seems
to e a problem with the Argyll measurements.
Hmm. Well, it took a bit of effort, but I think I've finally
tracked this one down. There were three separate bugs, covering
each other up, involving the spectral to XYZ conversion.
Currently the emissive XYZ values are too big for the i1pro by
a factor of about 1.37
Graeme Gill.
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