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The Oxford Compendium of Visual Illusions$
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Arthur G. Shapiro and Dejan Todorovic

Print publication date: 2017

Print ISBN-13: 9780199794607

Published to Oxford Scholarship Online: June 2017

DOI: 10.1093/acprof:oso/9780199794607.001.0001

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Filling-In Between Contours

Filling-In Between Contours

Chapter:
(p.448) Chapter 60 Filling-In Between Contours
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Rob van Lier

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0060

Color and form appear to be strongly interconnected, and visual illusions provide a perfect entrance to learn more about the underlying mechanisms of the visual brain. In particular, the color impression of surfaces often depend on the presence and properties of contours. To illustrate the influence of contours on the appearance of surfaces three visual illusions are discussed; the “double neon color” illusion, the “catching patches illusion,” and the “afterimage filling-in illusion.” In each of these illusions, contours—either illusory or real—appear to trigger and constrain filling-in processes. Modulations of the filling-in illusions presented in the chapter may further reveal properties of the underlying mechanism dealing with color-contour interactions.

Keywords:   afterimages, colors, filling-in, double neon color illusion, catching patches, neon color, contours, illusions, color-contour

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