IEVref:845-23-077ID:
Language:enStatus: Standard
Term: CIE 1976 L*a*b* colour difference
Synonym1: CIELAB colour difference
[Preferred]
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Definition: difference between two colour stimuli, defined as the Euclidean distance between the points representing them in the CIE 1976 L*a*b* colour space and calculated as:
  • Δ E ab * = [ ( Δ L * ) 2 + ( Δ a * ) 2 + ( Δ b * ) 2 ] 1/2

Note 1 to entry: See also CIE 15, Colorimetry.

Note 2 to entry: See also ISO/CIE 11664-4, Colorimetry – Part 4: CIE 1976 L*a*b* Colour Space.

Note 3 to entry: This entry was numbered 845-03-57 in IEC 60050-845:1987.


Publication date:2020-12
Source
Replaces:845-03-55:1987
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