Synonyms
Definition
CIELAB is a uniform color space (UCS) recommended by CIE in 1976 [1], and it was later published as a Joint ISO/CIE Standard [2]. A UCS is defined by the CIE International Lighting Vocabulary [3] as a color space in which equal distances are intended to represent threshold or suprathreshold perceived color differences of equal size. It is one of the most widely used color spaces. The typical applications include color specification and color difference evaluation. The former is to describe a color in perceptual correlates such as lightness, chroma, and hue and to plot samples to understand their relationships. The latter is mainly used for color quality control such as setting color tolerance, color constancy, metamerism, and color rendering.
For the definition equations of the components of CIELAB, see section CIE L*a*b* Formula (CIELAB).
Overview
Over the years, color scientists and engineers have been striving to achieve a UCS. To apply UCS, a...
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References
CIE Publication No. 015: Colorimetry. Central Bureau of the CIE, Vienna (2004)
ISO 11664–4:2008(E)/CIE S 014-4/E: Joint ISO/CIE Standard: Colorimetry-Part4: CIE 1976 L*a*b* Colour Space (2007)
CIE: International Lighting vocabulary, Central Bureau of the CIE, Vienna. http://eilv.cie.co.at/ (2012)
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CIE Publication No. 159: A colour appearance model for colour management systems: CIECAM02. (2004)
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Luo, M.R. (2015). CIELAB. In: Luo, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_11-1
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DOI: https://doi.org/10.1007/978-3-642-27851-8_11-1
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