Measuring the meter: on the constancy of lightness scales seen against different backgrounds

ZAVAGNO, Daniele, DANEYKO, Olga and AGOSTINI, Tiziano (2010). Measuring the meter: on the constancy of lightness scales seen against different backgrounds. Behavior Research Methods, 43 (1), 215-223.

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Abstract

The constancy of a 16-step achromatic Munsell scale was tested with regards to background variations in two experiments. In experiment 1 three groups of observers were asked to find lightness matches for targets in simultaneous lightness displays by using a 16-step achromatic Munsell scale placed on a white, black, or white-black checkered background. In experiment 2, a yellow-blue checkered background and a green-red checkered background replaced Munsell scales on the black and on the white backgrounds. Significant effects of scale background on matches were found only in experiment 1, suggesting that background luminance is a crucial factor in the overall appearance of the scale. The lack of significant differences in experiment 2, however, may stand for an overall robustness of the scale with respect to background luminance changes occurring within certain luminance ranges.

Item Type:	Article
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Centre for Pedagogic Research and Innovation
Departments - Does NOT include content added after October 2018:	Faculty of Social Sciences and Humanities > Department of Psychology, Sociology and Politics
Identification Number:	https://doi.org/10.3758/s13428-010-0035-y
Page Range:	215-223
Depositing User:	Olga Daneyko
Date Deposited:	17 Jan 2018 12:47
Last Modified:	18 Mar 2021 16:31
URI:	https://shura.shu.ac.uk/id/eprint/16748

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