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Accuracy of approximations for CIELAB chroma and hue difference computation
Author(s) -
Burns Peter D.
Publication year - 1997
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/(sici)1520-6378(199702)22:1<61::aid-col9>3.0.co;2-2
Subject(s) - hue , lightness , mathematics , color difference , computation , transformation (genetics) , color space , artificial intelligence , algorithm , computer science , image (mathematics) , enhanced data rates for gsm evolution , biochemistry , chemistry , gene
The transformation in CIELAB from differences in the L * , a * , b * coordinates to those in lightness, chroma, and hue, Δ L * , Δ C ab * , Δ H ab * , can be approximated by a rotation in 3‐space. Expressions for the error in the approximation of chroma and hue differences are developed. Significant errors are introduced if either the hue angle or chroma difference between reference and sample colors are large. A computed example illustrates the use of the analysis. © 1997 John Wiley & Sons, Inc. Col Res Appl, 22, 61–64, 1997.