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Image color‐appearance specification through extension of CIELAB
Author(s) -
Fairchild Mark D.,
Berns Roy S.
Publication year - 1993
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080180308
Subject(s) - chromatic adaptation , lightness , color space , hue , color balance , extension (predicate logic) , color difference , artificial intelligence , computer vision , icc profile , mathematics , color model , spectral color , computer science , chromatic scale , brightness , primary color , adaptation (eye) , optics , color image , image (mathematics) , physics , image processing , combinatorics , enhanced data rates for gsm evolution , programming language
An extension of the CIE 1976 (L*, a*, b*) color space, CIELAB is described for applications in color reproduction. This extension incorporates a more accurate model of chromatic adaptation, capability to distinguish between the modes of appearance of reflective and self‐luminous stimuli, and adjustments to account for changes in surround. The extension of CIELAB is referred to as the RLAB color space. This color space can be used for calculating metrics of lightness, chroma, hue, and color difference. It can also be used to determine the required colors for reproduction across changes in media and viewing conditions. A pilot experiment testing the RLAB model for cross‐media color reproduction is also described.