TheInternational Commission on Illumination (abbreviatedCIE for its French nameCommission internationale de l'éclairage, but historically abbreviatedICI in English) is the international authority onlight,illumination,colour, andcolour spaces. It was established in 1913 as a successor to the Commission Internationale de Photométrie, which was founded in 1900, and is today based inVienna, Austria.
The President of the CIE from 2023 is Jennifer Veitch from Canada.[11]
CIE publishes Technical Reports (TRs), International Standards (ISs) and Technical Notes (TNs). International Standards (ISs) are often further developed as dual standards with theISO orIEC.[12]
In 1964 the 10° CIE standard observer and its corresponding color matching functions as well as the new standard daylightilluminant D6500 were added, as well as a method for calculating daylight illuminants atcorrelated color temperatures other than 6500kelvins.
In 1976, the commission developed theCIELAB andCIELUV color spaces, which are widely used today.
Based on CIELAB, color difference formulas CIEDE94 and CIEDE2000 were recommended in the corresponding years.
^Troland, L. T. (August 1922)."Report of Committee on Colorimetry for 1920–21".Journal of the Optical Society of America.6 (6):527–96.Bibcode:1922JOSA....6..527T.doi:10.1364/JOSA.6.000527. The report defined colour as follows: "Color is the general name for all sensations arising from the activity of the retina of the eye and its attached nervous mechanisms, this activity being, in nearly every case in the normal individual, a specific response to radiant energy of certain wave-lengths and intensities."
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