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'''Dither''' is an intentionally applied form of [[image noise|noise]] used to randomize [[quantization error]], preventing large-scale patterns such as [[color banding]] in images. Dither is routinely used in processing of both [[digital audio]] and [[digital video|video]] data, and is often one of the last stages of [[Audio mastering|mastering]] audio to a [[compact disc|CD]].
A common use of dither is converting a [[grayscale]] image to [[Binary image|black and white]],
== Etymology ==
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