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DominantWavelength Converts xyY coordinates to wavelength.
DominantWavelength
DominantWavelength(xyYmatrix, illuminant='D65',observer=2, RefWhiteIllum=get("XYZperfectreflectingdiffuser", envir = environment()))
xyY matrix
illuminant
observer
Reference White
Dominant Wavelength
Bruce Justin Lindbloom, 2013 http://www.brucelindbloom.com/index.html?ColorCalculator.html
# NOT RUN { DominantWavelength(c(0.59072, 0.85570, 0.80283)) # }
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