Cornsweet edge
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Cornsweet-edge effect — see Cornsweet effect … Dictionary of Hallucinations
Cornsweet effect — Also known as Cornsweet edge, Cornsweet edge effect, Cornsweet stimulus, Cornsweet illusion, Craik Cornsweet illusion, Craik O Brien Cornsweet illusion, and Craik O Brien effect. The eponym Cornsweet effect refers to the American cognitive… … Dictionary of Hallucinations
Cornsweet illusion — Cornsweet illusion. Left part of the picture seems to be darker than the right one. In fact they have the same brightness … Wikipedia
Filling-in — In vision, filling in phenomena are those responsible for the completion of missing information across the physiological blind spot, and across natural and artificial scotomata. There is evidence calling for similar mechanisms of completion also… … Wikipedia
Acutance — An image with artificially increased accutance Another illustration, where overshoot caused by using unsharp masking to sharpen the image (bottom half) increases acutance. In photogra … Wikipedia
Op art — Not to be confused with pop art or plop art. Movement in Squares, by Bridget Riley 1961 Op art, also known as optical art, is a style[1] of visual art that makes use of optical ill … Wikipedia
Mach bands — Also known as Mach s bands and Mach band illusion. All three eponyms refer to the Czech born Austrian physicist and philosopher Ernst Mach (1838 1916), who first described the concomitant phenomenon in 1865. They refer to a contrast illusion… … Dictionary of Hallucinations
colour — /kul euhr/, n., adj. v.t., v.i. Chiefly Brit. color. Usage. See or1. * * * I Aspect of any object that may be described in terms of hue, brightness, and saturation. It is associated with the visible wavelengths of electromagnetic radiation, which … Universalium
