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Parametric effects on the evaluation of threshold chromaticity differences using red printed samples

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Parametric effects on the evaluation of threshold chromaticity differences using red printed samples

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dc.contributor.author Brusola Simón, Fernando es_ES
dc.contributor.author Tortajada Montañana, Ignacio es_ES
dc.contributor.author Jorda-Albiñana, Begoña es_ES
dc.contributor.author Melgosa, Manuel es_ES
dc.date.accessioned 2020-04-17T12:51:00Z
dc.date.available 2020-04-17T12:51:00Z
dc.date.issued 2019-04-01 es_ES
dc.identifier.issn 1084-7529 es_ES
dc.identifier.uri http://hdl.handle.net/10251/140937
dc.description This paper was published in JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION 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: https://doi.org/10.1364/JOSAA.36.000510. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. es_ES
dc.description.abstract [EN] Results from different authors showed deviations of radial orientation in the a*-b* plane (tilt) for the major axes of chromaticity-discrimination ellipses centered around the International Commission on Illumination (CIE) red color center [Color Res. Appl. 3, 149 (1978)], which are not considered by most of the current advanced color-difference formulas (e.g., CIEDE2000). We performed a visual experiment using red printed samples in order to test the influence of the separation between samples (gap) on the mentioned tilt. Our results confirm a counterclockwise tilt of fitted a*-b* ellipses with a magnitude of approximately 36 degrees for samples with no separation, which is similar to that detected by other authors, and a reduction of the mentioned tilt owing to the separation of the samples. We detected a tilt of approximately 22 degrees for samples with a black gap of 0.5 mm and a tilt of approximately 25 degrees for samples with a white gap of 3 mm. Notably, the uncertainty of previous values given by the corresponding credibility intervals of 95% posterior probability is approximately +/- 8 degrees of the mean values. Finally, we study the performance of the most widely used color-difference formulas in the graphic arts sector using our current experimental results, and conclude that the performance of the CAM02-SCD and CAM02-UCS color-difference formulas is significantly better than that of the CIEDE2000 formula. es_ES
dc.language Inglés es_ES
dc.publisher The Optical Society es_ES
dc.relation.ispartof Journal of the Optical Society of America A es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject COLOR DIFFERENCES es_ES
dc.subject CONSTANT-STIMULI es_ES
dc.subject ELLIPSES es_ES
dc.subject SCALE es_ES
dc.subject SPACE es_ES
dc.subject.classification DIBUJO es_ES
dc.subject.classification EXPRESION GRAFICA EN LA INGENIERIA es_ES
dc.title Parametric effects on the evaluation of threshold chromaticity differences using red printed samples es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1364/JOSAA.36.000510 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Gráfica - Departament d'Enginyeria Gràfica es_ES
dc.description.bibliographicCitation Brusola Simón, F.; Tortajada Montañana, I.; Jorda-Albiñana, B.; Melgosa, M. (2019). Parametric effects on the evaluation of threshold chromaticity differences using red printed samples. Journal of the Optical Society of America A. 36(4):510-517. https://doi.org/10.1364/JOSAA.36.000510 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1364/JOSAA.36.000510 es_ES
dc.description.upvformatpinicio 510 es_ES
dc.description.upvformatpfin 517 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 36 es_ES
dc.description.issue 4 es_ES
dc.relation.pasarela S\389260 es_ES
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