Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/103116
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Title: White appearance of a tablet display under different ambient lighting conditions
Authors: Huang, HP 
Wei, M 
Ou, LC
Issue Date: 19-Feb-2018
Source: Optics express, 19 Feb. 2018, v. 26, no. 4, p. 5018-5030
Abstract: In comparison to the great efforts made on the enhancement of image quality for tablet displays, little attention has been paid on the concept of white point. Given the increasing popularity of the light sources with chromaticities off the Planckian locus and color-tunable LED lighting, it is important to investigate human’s white perception of tablet display under different ambient lighting conditions. This study investigated the white appearance of a tablet display under 17 ambient lighting conditions, including a dark condition, seven conditions with chromaticities on the Planckian locus, and nine conditions with chromaticities off the Planckian locus, (i.e., Duv = + 0.02, −0.02, and −0.04). It was found that both the white appearance boundary defined by the fitted one-standard-deviation error ellipse and the whitest stimulus rated by the observers or identified by the bivariate Gaussian distribution were different under the various ambient lighting conditions. The optimization based on the whitest stimulus under each ambient lighting condition suggested a lower degree of chromatic adaptation under the conditions with a lower Correlated Color Temperature (CCT). For the conditions with a same CCT, a Duv of −0.02 was found to provide a higher degree of chromatic adaptation than Duv values of + 0.02 and −0.04.
Publisher: Optical Society of America
Journal: Optics express 
EISSN: 1094-4087
DOI: 10.1364/OE.26.005018
Rights: © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://opg.optica.org/library/license_v1.cfm#VOR-OA)
© 2018 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
The following publication Huang, H. P., Wei, M., & Ou, L. C. (2018). White appearance of a tablet display under different ambient lighting conditions. Optics express, 26(4), 5018-5030 is available at https://doi.org/10.1364/OE.26.005018.
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