Voila!
International Technical Specification
of Color
nNow we have a way (specifying a color’s CIE X, Y, and Z values) to precisely characterize any color using only
three variables!
nRepresents all visible wavelengths and their
combinations
nVery convenient: Colorimeters, spectradiometers measure X, Y, Z values.
nUsed in many areas of industry and academia—from paint to lighting to physics and chemistry.
nInternational Telecommunication Union uses 1931 CIE color matching functions in their recommendations for worldwide unified colorimetry
–International Telecommunication Union (1998) ITU-R
BT.1361 WORLDWIDE
UNIFIED COLORIMETRY AND RELATED CHARACTERISTICS OF FUTURE TELEVISION AND
IMAGING SYSTEMS
–International Telecommunication Union (2000) ITU-R
BT.709-4 PARAMETER VALUES
FOR THE
HDTV STANDARDS FOR
PRODUCTION AND
INTERNATIONAL PROGRAMME
EXCHANGE