An experiment was carried out to study large colour differences. Two-hundred-and-ninety-two wool pairs were prepared with an average difference of 12 CIELAB β¬E units. Visual assessments were conducted using gray scale and pair comparison psychophysical methods by a panel of 20 observers. The results
Comparing large colour-difference data sets
β Scribed by S. Y. Zhu; M. R. Luo; G. H. Cui; C. J. Li; B. Rigg
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 121 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0361-2317
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β¦ Synopsis
Abstract
This study investigated the differences between different large colourβdifference (LCD) data sets (with a mean Ξ__E__ value about 10). Six data sets were studied. For each data set, various CIELAB based colour difference models were derived to fit the data. These models were compared to shed light on the difference between the different data sets. It was found that all data sets have very similar characteristics except for the Munsell data. Detailed investigation showed that the discrepancy is mainly due to the balance between the lightness and chromatic differences used previously for the Munsell data set. It was found that one unit of Munsell Value appears to be three times as large colour difference as one unit of Munsell Chroma at least under the experimental conditions for the data sets studied here. Β© 2010 Wiley Periodicals, Inc. Col Res Appl, 2011
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