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.

Zavagno, D., Daneyko, O., & Agostini, T. (2011). Measuring the meter: On the constancy of lightness scales seen against different backgrounds. BEHAVIOR RESEARCH METHODS, 43(1), 215-223 [10.3758/s13428-010-0035-y].

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

ZAVAGNO, DANIELE;
2011

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.
Articolo in rivista - Articolo scientifico
Scientifica
Lightness constancy; matching method; Munsell scale
English
Zavagno, D., Daneyko, O., & Agostini, T. (2011). Measuring the meter: On the constancy of lightness scales seen against different backgrounds. BEHAVIOR RESEARCH METHODS, 43(1), 215-223 [10.3758/s13428-010-0035-y].
Zavagno, D; Daneyko, O; Agostini, T
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/19002
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