- Derived image
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Краткий толковый словарь по полиграфии. 2010.
Derived image
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derived image — In digital imaging, an image that is obtained from another one, usually by eliminating part of it. Common techniques used to create a derived images include taking a detail, subsampling to a lower resolution, using lossy compression, or using… … Glossary of Art Terms
Image impedance — is a concept used in electronic network design and analysis and most especially in filter design. The term image impedance applies to the impedance seen looking in to the ports of a network. Usually a two port network is implied but the concept… … Wikipedia
image — is an old word (13c) derived from Latin imago meaning ‘copy, likeness, picture’ and in all its meanings suggests a real or mental picture. Since the late 1950s it has been used by marketeers, advertisers, and political spin doctors to mean ‘a… … Modern English usage
Derived functor — In mathematics, certain functors may be derived to obtain other functors closely related to the original ones. This operation, while fairly abstract, unifies a number of constructions throughout mathematics. Contents 1 Motivation 2 Construction… … Wikipedia
Derived set (mathematics) — In mathematics, more specifically in point set topology, the derived set of a subset S of a topological space is the set of all limit points of S. It is usually denoted by S′. The concept was first introduced by Georg Cantor in 1872 and he… … Wikipedia
Image moments — Used in image processing, computer vision and related fields, image moments are certain particular weighted averages ( moments ) of the image pixels intensities, or functions of those moments, usually chosen to have some attractive property or… … Wikipedia
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… … Wikipedia
Image functors for sheaves — In mathematics, especially in sheaf theory, a domain applied in areas such as topology, logic and algebraic geometry, there are four image functors for sheaves which belong together in various senses.Given a continuous mapping f : X rarr; Y of… … Wikipedia
Derived category — In mathematics, the derived category D(C) of an abelian category C is a construction of homological algebra introduced to refine and in a certain sense to simplify the theory of derived functors defined on C. The construction proceeds on the… … Wikipedia
Image noise — Noise clearly visible in an image from a digital camera Image noise is random (not present in the object imaged) variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the… … Wikipedia
