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dc.contributor.authorMelgosa Latorre, Manuel 
dc.contributor.authorGómez Robledo, Luis 
dc.contributor.authorCui, G.
dc.contributor.authorLi, C.
dc.contributor.authorPerales, E.
dc.contributor.authorMartínez-Verdú, F. M.
dc.contributor.authorDauser, T.
dc.date.accessioned2015-06-16T08:27:14Z
dc.date.available2015-06-16T08:27:14Z
dc.date.issued2015
dc.identifier.citationMelgosa Latorre, M.; et al. Measuring color differences in gonioapparent materials used in the automotive industry. Journal of Physics: conference series, 605: 012006 (2015). [http://hdl.handle.net/10481/36637]es_ES
dc.identifier.issn1742-6588
dc.identifier.urihttp://hdl.handle.net/10481/36637
dc.description.abstractThis paper illustrates how to design a visual experiment to measure color differences in gonioapparent materials and how to assess the merits of different advanced color-difference formulas trying to predict the results of such experiment. Successful color-difference formulas are necessary for industrial quality control and artificial color-vision applications. A color- difference formula must be accurate under a wide variety of experimental conditions including the use of challenging materials like, for example, gonioapparent samples. Improving the experimental design in a previous paper [Melgosaet al., Optics Express 22, 3458-3467 (2014)], we have tested 11 advanced color-difference formulas from visual assessments performed by a panel of 11 observers with normal colorvision using a set of 56 nearly achromatic colorpairs of automotive gonioapparent samples. Best predictions of our experimental results were found for the AUDI2000 color-difference formula, followed by color-difference formulas based on the color appearance model CIECAM02. Parameters in the original weighting function for lightness in the AUDI2000 formula were optimized obtaining small improvements. However, a power function from results provided by the AUDI2000 formula considerably improved results, producing values close to the inter-observer variability in our visual experiment. Additional research is required to obtain a modified AUDI2000 color-difference formula significantly better than the current one.es_ES
dc.description.sponsorshipThis research was supported by the Ministry of Economy and Competitiveness of Spain, research projects FIS2013-40661-P and DPI2011-30090-C02, with European Research Development Fund (ERDF), as well as by the National Science Foundation of China (grant number 61178053).es_ES
dc.language.isoenges_ES
dc.publisherInstitute of Physics (IOP)es_ES
dc.subjectMeasurees_ES
dc.subjectColor es_ES
dc.subjectGonioapparent materiales_ES
dc.subjectQuality es_ES
dc.subjectArtificial color-vision applicationses_ES
dc.titleMeasuring color differences in gonioapparent materials used in the automotive industryes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.1088/1742-6596/605/1/012006


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