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Different transformation methods between CIELAB coordinates and Munsell hue
Author(s) -
Mahyar Forough,
Cheung Vien,
Westland Stephen
Publication year - 2010
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2010.00224.x
Subject(s) - hue , standard illuminant , mathematics , transformation (genetics) , artificial intelligence , color difference , color space , pattern recognition (psychology) , computer science , image (mathematics) , enhanced data rates for gsm evolution , biochemistry , chemistry , gene
This research aims to convert CIE L * C * ab h ab coordinates into corresponding Munsell hues. Different transformation methods for colour mapping from CIELAB colour space to Munsell hues are proposed. Polynomial equations that predict Munsell hue from CIELAB h ab suffer from poor performance as there is no direct one‐to‐one mapping. Polynomial methods that predict Munsell hue from all three L * C * ab h ab values also show limited performance. However, a distance‐weighted look‐up‐table model based upon the CIEDE2000 colour‐difference equation is able to predict Munsell hue to an accuracy of 1 unit of root mean square error. All transformation methods in this paper were developed using CIE illuminant C and the 2° standard observer conditions and were based on 2729 Munsell renotation colour samples.