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- W2072551882 abstract "Abstract Measurements were made of the apparent size of a square as a function of its contrast at a constant mean luminance. The parameters included field-size, mean luminance, and spectral composition. The classical effect—a light target on a dark background appearing larger than a congruent target of equal but opposite maximum contrast—gives way at low contrasts to a new effect: the darker target appears to be larger than the light one. Masking and blurring of the target contours point to the involvement of edge detectors in the new but not necessarily in the classical effect. Additional observations on a lowfrequency square grating show that its apparent mark-space ratio varies with the exposure time. The data also reveal a significant asymmetry in the sense that the eye distinguishes between light-dark and dark-light contrasts." @default.
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- W2072551882 date "1975-08-01" @default.
- W2072551882 modified "2023-10-14" @default.
- W2072551882 title "Apparent size and contrast" @default.
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- W2072551882 doi "https://doi.org/10.1016/0042-6989(75)90235-7" @default.
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