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edge operator

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  • Edge detection — is a terminology in image processing and computer vision, particularly in the areas of feature detection and feature extraction, to refer to algorithms which aim at identifying points in a digital image at which the image brightness changes… …   Wikipedia

  • Edge preserving smoothing — is an image processing technique where the edge information is preserved during the smoothing process. It uses non linear operator which is able to remove texture and noise, while keeping edges and corners. The technique is known also as edge and …   Wikipedia

  • Edge recombination operator — General DescriptionThe edge recombination operator (ERO) is an operator that creates a path that is similar to a set of existing paths (parents) by looking at the edges rather than the vertices. The main application of this is for crossover in… …   Wikipedia

  • Operator-precedence grammar — An operator precedence grammar is a kind of grammar for formal languages. Technically, an operator precedence grammar is a context free grammar that has the property (among others[1]) that no production has either an empty right hand side or two… …   Wikipedia

  • Operator No. 5 — The correct title of this article is Operator #5. The substitution or omission of the # sign is because of technical restrictions. Operator #5 Cover of issue #26, Death s Ragged Army, which began the Purple Invasion story arc. ©Argosy… …   Wikipedia

  • Sobel operator — The Sobel operator is used in image processing, particularly within edge detection algorithms. Technically, it is a discrete differentiation operator, computing an approximation of the gradient of the image intensity function. At each point in… …   Wikipedia

  • Canny edge detector — The Canny edge detection operator was developed by John F. Canny in 1986 and uses a multi stage algorithm to detect a wide range of edges in images. Most importantly, Canny also produced a computational theory of edge detection explaining why the …   Wikipedia

  • Discrete Laplace operator — For the discrete equivalent of the Laplace transform, see Z transform. In mathematics, the discrete Laplace operator is an analog of the continuous Laplace operator, defined so that it has meaning on a graph or a discrete grid. For the case of a… …   Wikipedia

  • Bastard Operator from Hell — Der Bastard Operator From Hell (BOFH), zu deutsch etwa Mistkerl/Bastard Systembetreuer aus der Hölle, ist eine fiktive Figur und gleichzeitig der Titel einer weit verbreiteten Serie von satirischen Erzählungen des neuseeländischen Autors Simon… …   Deutsch Wikipedia

  • Laplace operator — This article is about the mathematical operator. For the Laplace probability distribution, see Laplace distribution. For graph theoretical notion, see Laplacian matrix. Del Squared redirects here. For other uses, see Del Squared (disambiguation) …   Wikipedia

  • Marr-Hildreth-Operator — Helligkeitsänderung einer Kante Verlauf der 2. Ableitung an der Kan …   Deutsch Wikipedia

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