翻訳と辞書 Words near each other ・ Imagesetter ・ ImageShack ・ ImageSource ・ Imagestate ・ ImageStation ・ ImageTrend Inc ・ ImageVis3D ・ ImageVis3D Mobile ・ Image map ・ Image mapping spectrometer ・ Image markup ・ Image Mastering API ・ Image Media Vision ・ Image meta search ・ Image Metrics ・ Image moment ・ Image Museum ・ Image Museum (Portugal) ・ Image Museum of Hsinchu City ・ Image Nation ・ Image News FM (Nepal) ・ Image noise ・ Image of Chile Foundation ・ Image of Death ・ Image of Edessa ・ Image of God ・ Image of the Beast ・ Image of the Beast (film) ・ Image of the Beast (novel) ・ Image of the Fendahl 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 Image moment ： ウィキペディア英語版 Image moment In image processing, computer vision and related fields, an image moment is a certain particular weighted average (moment) of the image pixels' intensities, or a function of such moments, usually chosen to have some attractive property or interpretation. Image moments are useful to describe objects after segmentation. Simple properties of the image which are found ''via'' image moments include area (or total intensity), its centroid, and information about its orientation. == Raw moments == For a 2D continuous function ''f''(''x'',''y'') the moment (sometimes called "raw moment") of order (''p'' + ''q'') is defined as :$M\_=\backslash int\backslash limits\_^\; \backslash int\backslash limits\_^\; x^py^qf(x,y)\; \backslash ,dx\backslash ,\; dy$ for ''p'',''q'' = 0,1,2,... Adapting this to scalar (greyscale) image with pixel intensities ''I''(''x'',''y''), raw image moments ''Mij'' are calculated by :$M\_\; =\; \backslash sum\_x\; \backslash sum\_y\; x^i\; y^j\; I(x,y)\backslash ,\backslash !$ In some cases, this may be calculated by considering the image as a probability density function, ''i.e.'', by dividing the above by :$\backslash sum\_x\; \backslash sum\_y\; I(x,y)\; \backslash ,\backslash !$ A uniqueness theorem (Hu ()) states that if ''f''(''x'',''y'') is piecewise continuous and has nonzero values only in a finite part of the ''xy'' plane, moments of all orders exist, and the moment sequence (''Mpq'') is uniquely determined by ''f''(''x'',''y''). Conversely, (''Mpq'') uniquely determines ''f''(''x'',''y''). In practice, the image is summarized with functions of a few lower order moments. 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「Image moment」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.