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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Dither ： ウィキペディア英語版 Dither Dither is an intentionally applied form of 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 video data, and is often one of the last stages of "mastering" audio to a CD. A typical use of dither is converting a greyscale image to black and white, such that the density of black dots in the new image approximates the average grey level in the original. == Etymology == The term "dither" was published in books on analog computation and hydraulically controlled guns shortly after the war. The concept of dithering to reduce quantization patterns was first applied by Lawrence G. Roberts in his 1961 MIT master's thesis〔Lawrence G. Roberts, ''Picture Coding Using Pseudo-Random Noise'', MIT, S.M. thesis, 1961 (online )〕 and 1962 article though he did not use the term ''dither''. By 1964 dither was being used in the modern sense described in this article. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dither」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.