The Weber fraction and asymmetries in luminance thresholds



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Carreño Sánchez, Fernando and Zoido Chamorro, Jesús Manuel (2002) The Weber fraction and asymmetries in luminance thresholds. Color Research and Application, 27 (5). pp. 330-334. ISSN 0361-2317

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Presented in this article is a method for the determination of the Weber fraction by analyzing data obtained from color-matching experiments. The method is based on a rigorous analysis of the probability density function derived from discrimination judgments made in the xyY space. Analysis shows the thresholds for luminance increments and decrements are shown to be different and asymmetric and the Weber fraction to depend on the target's level of luminance and chromaticity.

Item Type:Article
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Issue online: 27 August 2002; Version of record online: 27 August 2002; Manuscript Accepted: 22 October 2001; Manuscript Received: 9 July 2001

Uncontrolled Keywords:Color matching; Colorimetry; Weber fraction
Subjects:Sciences > Physics > Optics
Medical sciences > Optics > Color
Medical sciences > Optics > Geometrical and instumental optics
ID Code:46415
Deposited On:23 Feb 2018 13:17
Last Modified:23 Feb 2018 13:17

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