Original scientific paper

https://doi.org/10.17559/TV-20160122205606

The intensity of the simultaneous contrast effect depending on the change of background lightness

Krunoslav Hajdek orcid.org/0000-0001-6572-5529 ; University North, 104. brigade 3, 42000 Varaždin, Croatia
Ivan Budimir ; Faculty of Graphic Arts, Getaldićeva 2, 10000 Zagreb, Croatia
Damir Vusić orcid.org/0000-0001-9972-2246 ; University North, 104. brigade 3, 42000 Varaždin, Croatia

Abstract

The paper explores the influence of the background effect of induction or simultaneous contrast on a specific type of media during the reproduction of a constructed design solution. The lightness of the background that surrounds the primary stimulus (rectangle) on a specifically constructed design was varied in ten ways. The intensity and direction of variations in the manifestation of lightness was determined with the help of the technique of simultaneous binocular harmonization on a certain number of respondents (10). The ANOVA analysis determined the existence of differences between arithmetic means (F = 132,50; p = 0,000), and the post-hoc analysis by Fisher classified three groups of samples: samples on which simultaneous contrast reflects more strongly (a very dark background); samples on which the effect is weaker (a light background); and samples on which the effect is manifested in the opposite direction (a very bright background).

Keywords

achromatic reproduction; ANOVA; psychophysics; simultaneous contrast

Hrčak ID:

156848

URI

https://hrcak.srce.hr/156848

Publication date:

27.4.2016.

Article data in other languages: croatian

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