翻訳と辞書 Words near each other ・ Postinternet ・ Postipankki ・ Postipuu School ・ Postira ・ Postjesweg metro station ・ Posterior tibiofibular ligament ・ Posterior triangle of the neck ・ Posterior ulnar recurrent artery ・ Posterior urethral valve ・ Posterior vagal trunk ・ Posterior vein of the left ventricle ・ Posterior vitreous detachment ・ Posterior wall ・ Posterity of Heaven ・ Posterity Records ・ Posterization ・ Posterized ・ Postern ・ Postern Gap ・ Postern of Fate ・ Posterolateral knee injuries ・ Posterolateral palatal pits ・ Posterolateral sulcus ・ Posterolateral sulcus of medulla oblongata ・ Posterolateral sulcus of spinal cord ・ Posterolateral tract ・ Posterous ・ Posterstein ・ Posterus Foundation ・ Postes, télégraphes et téléphones Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Posterization ： ウィキペディア英語版 Posterization Posterization or posterisation of an image entails conversion of a continuous gradation of tone to several regions of fewer tones, with abrupt changes from one tone to another. This was originally done with photographic processes to create posters. It can now be done photographically or with digital image processing, and may be deliberate or may be an unintended artifact of color quantization. ==Cause== The effect may be created deliberately, or happen accidentally. For artistic effect, most image editing programs provide a posterization feature, or photographic processes may be used. Unwanted posterization, also known as banding, may occur when the color depth, sometimes called bit depth, is insufficient to accurately sample a continuous gradation of color tone. As a result, a continuous gradient appears as a series of discrete steps or bands of color — hence the name. When discussing fixed pixel displays, such as LCD and plasma televisions, this effect is referred to as false contouring. Additionally, compression in image formats such as JPEG can also result in posterization when a smooth gradient of colour or luminosity is compressed into discrete quantized blocks with stepped gradients. The result may be compounded further by an optical illusion, called the Mach band illusion, in which each band appears to have an intensity gradient in the direction opposing the overall gradient. This problem may be resolved, in part, with dithering. 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「Posterization」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.