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The influence of luminance on color-difference thresholds

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Carreño Sánchez, Fernando and Zoido Chamorro, Jesús Manuel (2001) The influence of luminance on color-difference thresholds. Color Research and Application, 26 (5). pp. 362-368. ISSN 0361-2317

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Official URL: http://dx.doi.org/10.1002/col.1051




Abstract

We present a discussion about the influence of luminance on the geometry of color-difference thresholds. By assuming that color matchings are normally distributed in XYZ space, we have shown [Appl Opt 38:208–219 (1999)] that the probability density function of color matches in (x, y, Y) space is not a normal distribution function and it is an asymmetric one. Due to this asymmetry, the curves of equally noticeable chromaticity differences show asymmetries around the color center. The influence of luminance on the shape of these curves is analyzed, and we conclude that the lower the luminance, the larger the asymmetry.


Item Type:Article
Additional Information:

Issue online: 28 August 2001; Version of record online: 28 August 2001; Manuscript Accepted: 30 May 2000; Manuscript Received: 31 January 2000

Uncontrolled Keywords:Luminance; Color vision; Color thresholds; Color matching; Chromaticity differences
Subjects:Sciences > Physics > Optics
Medical sciences > Optics > Color
Medical sciences > Optics > Geometrical and instumental optics
ID Code:46416
Deposited On:23 Feb 2018 13:17
Last Modified:23 Feb 2018 13:17

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