The Bezold effect is an
optical illusion
Within visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual perception, percept that arguably appears to differ from reality. Illusions come in a wide v ...
, named after a German professor of meteorology
Wilhelm von Bezold
Johann Friedrich Wilhelm von Bezold (June 21, 1837 – February 17, 1907) was a German physicist and meteorologist born in Munich, Kingdom of Bavaria. He is best known for discovering the Bezold effect and the Bezold–Brücke shift.
Bezold ...
(1837–1907), who discovered that a color may appear different depending on its relation to adjacent colors.
It happens when small areas of color are interspersed. An assimilation effect called the von Bezold spreading effect, similar to
spatial color mixing, is achieved.
The opposite effect is observed when large areas of color are placed adjacent to each other, resulting in
color contrast.
See also
*
White's illusion
White's illusion is a brightness illusion where certain stripes of a black-and-white grating are partially replaced by a gray rectangle (see the figure). Both of the gray bars of A and B have the same color and opacity. The brightness of the gray ...
References
* Albers, J. ''Interaction of color'': unabridged text and selected plates. 8. ed. Massachusetts: Yale University Press, 1978.
*
Echo Productions. ''Wilhelm von Bezold''. Virtual color museum.*Bergantini, Ernesto: ''Farbe im Design. Basiswissen'', Gossau, 2010, p. 115.
Optical illusions
Color
Visual perception
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