翻訳と辞書 Words near each other ・ Median ・ Median (disambiguation) ・ Median (geometry) ・ Median absolute deviation ・ Median algebra ・ Median alveolar cyst ・ Median antebrachial vein ・ Median aperture ・ Median arcuate ligament ・ Median arcuate ligament syndrome ・ Median artery ・ Median center of United States population ・ Median cubital vein ・ Median cut ・ Median eminence ・ Median filter ・ Median follow-up ・ Median graph ・ Median household income ・ Median household income in Australia and New Zealand ・ Median income per household member ・ Median language ・ Median lethal dose ・ Median mandibular cyst ・ Median nail dystrophy ・ Median nerve ・ Median nerve palsy ・ Median of medians ・ Median palatal cyst ・ Median plane 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 Median filter ： ウィキペディア英語版 Median filter In signal processing, it is often desirable to be able to perform some kind of noise reduction on an image or signal. The median filter is a nonlinear digital filtering technique, often used to remove noise. Such noise reduction is a typical pre-processing step to improve the results of later processing (for example, edge detection on an image). Median filtering is very widely used in digital image processing because, under certain conditions, it preserves edges while removing noise (but see discussion below). == Algorithm description == The main idea of the median filter is to run through the signal entry by entry, replacing each entry with the median of neighboring entries. The pattern of neighbors is called the "window", which slides, entry by entry, over the entire signal. For 1D signals, the most obvious window is just the first few preceding and following entries, whereas for 2D (or higher-dimensional) signals such as images, more complex window patterns are possible (such as "box" or "cross" patterns). Note that if the window has an odd number of entries, then the median is simple to define: it is just the middle value after all the entries in the window are sorted numerically. For an even number of entries, there is more than one possible median, see median for more details. 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「Median filter」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.