Bryan Hanson <hanson <at> depauw.edu> writes: > > grDevices::convertColor has arguments 'from' and 'to' which can take on value 'XYZ'. Can someone confirm > that 'XYZ' is the same as the CIE chromaticity coordinates are also sometimes refered to as 'xyY' in > the literature? Or are these the CIE tristimulus values? It looks to me like the first case is true, but I > would appreciate hearing from one of the people in know. Thanks, Bryan > >
I.'d look at the code or put in some known data to test it, but XYZ are tristimulus values and xyY are chromaticity coordinated and the luminance which is the Y tristimulus value for the CIE 1931 standard observer. Ken ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
