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aliasing
(redirected from Foldover frequencies)

    Also found in: Medical, Encyclopedia, Wikipedia 0.09 sec.

aliasing

Effect seen on computer screen or printer output, when smooth curves appear to be made up of steps because the resolution is not high enough. The steps are caused by clumps of pixels that become visible when the monitor's definition is lower than that of the image that it is trying to show. Anti-aliasing is a software technique that reduces this effect by using intermediate shades of colour to create an apparently smoother curve.



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