Measuring color differences in automotive samples with lightness flop: a test of the AUDI2000 color-difference formula
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Título: | Measuring color differences in automotive samples with lightness flop: a test of the AUDI2000 color-difference formula |
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Autor/es: | Melgosa Latorre, Manuel | Martínez García, Juan | Gómez Robledo, Luis | Perales, Esther | Martínez-Verdú, Francisco M. | Dauser, Thomas |
Grupo/s de investigación o GITE: | Visión y Color |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Color | Color, measurement | Colorimetry |
Área/s de conocimiento: | Óptica |
Fecha de publicación: | 6-feb-2014 |
Editor: | Optical Society of America |
Cita bibliográfica: | Optics Express. 2014, 22(3): 3458-3467. doi:10.1364/OE.22.003458 |
Resumen: | From a set of gonioapparent automotive samples from different manufacturers we selected 28 low-chroma color pairs with relatively small color differences predominantly in lightness. These color pairs were visually assessed with a gray scale at six different viewing angles by a panel of 10 observers. Using the Standardized Residual Sum of Squares (STRESS) index, the results of our visual experiment were tested against predictions made by 12 modern color-difference formulas. From a weighted STRESS index accounting for the uncertainty in visual assessments, the best prediction of our whole experiment was achieved using AUDI2000, CAM02-SCD, CAM02-UCS and OSA-GP-Euclidean color-difference formulas, which were no statistically significant different among them. A two-step optimization of the original AUDI2000 color-difference formula resulted in a modified AUDI2000 formula which performed both, significantly better than the original formula and below the experimental inter-observer variability. Nevertheless the proposal of a new revised AUDI2000 color-difference formula requires additional experimental data. |
Patrocinador/es: | This research was supported by the Ministry of Economy and Competitiveness (Spain), research projects DPI2011-30090-C02 and FIS2010-19839, with European Regional Development Fund. |
URI: | http://hdl.handle.net/10045/35476 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.22.003458 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-22-3-3458. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1364/OE.22.003458 |
Aparece en las colecciones: | INV - GVC - Artículos de Revistas |
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oe-22-3-3458.pdf | 1,91 MB | Adobe PDF | Abrir Vista previa | |
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