Causes of Individual Differences on Brightness/Luminance (B/L) Ratios

Yoshinobu NAYATANI; Hiroaki SOBAGAKI

doi:10.2150/jlve.27.160

Journal of Light & Visual Environment

Online ISSN : 1349-8398
Print ISSN : 0387-8805
ISSN-L : 0387-8805

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Causes of Individual Differences on Brightness/Luminance (B/L) Ratios

Yoshinobu NAYATANI, Hiroaki SOBAGAKI

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Keywords: brightness/luminance ratio, inter-observer variation, direct brightness matching, hetero-chromatic brightness matching

JOURNAL FREE ACCESS

2003 Volume 27 Issue 3 Pages 160-164

DOI https://doi.org/10.2150/jlve.27.160

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Abstract

On individual variation of Brightness/Luminance (B/L)-ratio effect, the causes of its individual differences are studied. Based on the present study, the following conclusions are confirmed. 1) The individual differences on B/L-ratio effect are caused by the differences in attitude between subjects on equi-brightness judgement. 2) For the present, we must satisfy with a theoretical prediction of the average experimental B/L ratios derived by observations using a number of subjects.

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