Illusory contours or subjective contours are a form of visual illusion where contours are perceived without a luminance or color change across the contour. Friedrich Schumann discovered illusory contours.
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Famous quotes containing the word contours:
“Pregnant women! They had that weird frisson, an aura of magic that combined awkwardly with an earthy sense of duty. Mundane, because they were nothing unique on the suburban streets; ethereal because their attention was ever somewhere else. Whatever you said was trivial. And they had that preciousness which they imposed wherever they went, compelling attention, constantly reminding you that they carried the future inside, its contours already drawn, but veiled, private, an inner secret.”
—Ruth Morgan (1920–1978)