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Revisiting the weighting function for lightness in the CIEDE2000 colour-difference formula.
- Source :
- Coloration Technology; Aug2017, Vol. 133 Issue 4, p273-282, 9p
- Publication Year :
- 2017
-
Abstract
- We have used 13 experimental datasets (7420 colour pairs) to study the performance of the weighting function for lightness proposed by the CIEDE2000 colour-difference formula, because it has been suggested that this function can be improved by using the weighting function for lightness S<subscript>L</subscript> = 1 adopted by the CIE94 colour-difference formula. Using the standardised residual sum of squares ( STRESS) index, it was found that: (i) replacing the S<subscript>L</subscript> in CIEDE2000 with S<subscript>L</subscript> = 1 improved the results for 7/13 datasets considered, but the improvement was statistically significant only for 1/13 datasets; (ii) a Whittle-type lightness-difference formula can be used to replace the term ∆ L*/ S<subscript>L</subscript> in CIEDE2000, which led to a new colour-difference formula with no statistically significant difference with respect to CIEDE2000 for any of the 13 experimental datasets. A modification of the CIEDE2000 formula using a Whittle-type lightness formula is proposed. [ABSTRACT FROM AUTHOR]
- Subjects :
- DYES & dyeing
COLOR
PIGMENTS
AUXOCHROMES
STATISTICAL sampling
Subjects
Details
- Language :
- English
- ISSN :
- 14723581
- Volume :
- 133
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Coloration Technology
- Publication Type :
- Academic Journal
- Accession number :
- 124177908
- Full Text :
- https://doi.org/10.1111/cote.12294