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Chromostereopsis
is a visual illusion in which the impression of depth is conveyed in two-dimensional color images. This 1564
stained-glass
window, in the
Bielsko-Biała Museum and Castle
in Poland, exhibits this effect, with contrasting depth perception in the red and blue areas. The window, an example of
Standesscheibe
, depicts the coat of arms of
Unterwalden
, a
canton
of the
Old Swiss Confederacy
.
Stained-glass credit: unknown; photographed by
Jan Mehlich
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