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Perception and Imaging, 4th Edition by Richard D. Zakia

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6

Illusion and Ambiguity

Those things which are most real are the illusions I create in my paintings.

Eugène Delacroix

“Euclidean Walks” by René Magritte. © 2006 C. Herscovici, Brussels/Artist Rights Society (ARS) New York. Are we looking at a painting on an easel in front of a window that mimics what is outside the window or are we actually looking directly at the scene outside the window? Similarity and proximity of the two cone shapes encourages grouping of the two that are in different picture planes, causing further ambiguity.

Illusions have been studied extensively by perceptual psychologists in an effort to understand the process of vision ...

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