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• Sobel_operator abstract "The Sobel operator, sometimes called Sobel Filter, is used in image processing and computer vision, particularly within edge detection algorithms, and creates an image which emphasizes edges and transitions. It is named after Irwin Sobel, who presented the idea of an "Isotropic 3x3 Image Gradient Operator" at a talk at the Stanford Artificial Intelligence Project (SAIL) in 1968. Technically, it is a discrete differentiation operator, computing an approximation of the gradient of the image intensity function. At each point in the image, the result of the Sobel operator is either the corresponding gradient vector or the norm of this vector. The Sobel operator is based on convolving the image with a small, separable, and integer valued filter in horizontal and vertical direction and is therefore relatively inexpensive in terms of computations. On the other hand, the gradient approximation that it produces is relatively crude, in particular for high frequency variations in the image. The Kayyali operator for edge detection is another operator generated from Sobel operator.".
• Sobel_operator thumbnail Valve_original_(1).PNG?width=300.
• Sobel_operator wikiPageExternalLink scipy.ndimage.filters.sobel.
• Sobel_operator wikiPageExternalLink SobelScharrGradients5x5.pdf.
• Sobel_operator wikiPageExternalLink www.edgedetection.webs.com.
• Sobel_operator wikiPageExternalLink Sobel:Irwin.html.
• Sobel_operator wikiPageExternalLink edge-detection.html.
• Sobel_operator wikiPageExternalLink sobel-edge-detection-opencv-for-windows.html.
• Sobel_operator wikiPageID "476116".
• Sobel_operator wikiPageRevisionID "605910937".
• Sobel_operator hasPhotoCollection Sobel_operator.
• Sobel_operator subject Category:Feature_detection.
• Sobel_operator comment "The Sobel operator, sometimes called Sobel Filter, is used in image processing and computer vision, particularly within edge detection algorithms, and creates an image which emphasizes edges and transitions. It is named after Irwin Sobel, who presented the idea of an "Isotropic 3x3 Image Gradient Operator" at a talk at the Stanford Artificial Intelligence Project (SAIL) in 1968.".
• Sobel_operator label "Filtre de Sobel".
• Sobel_operator label "Filtro Sobel".
• Sobel_operator label "Operador Sobel".
• Sobel_operator label "Operatore di Sobel".
• Sobel_operator label "Sobel operator".
• Sobel_operator label "Sobel".
• Sobel_operator label "Sobel-Operator".
• Sobel_operator label "Оператор Собеля".
• Sobel_operator label "索貝爾算子".
• Sobel_operator sameAs Sobel-Operator.
• Sobel_operator sameAs Operador_Sobel.
• Sobel_operator sameAs Filtre_de_Sobel.
• Sobel_operator sameAs Operatore_di_Sobel.
• Sobel_operator sameAs Sobel.
• Sobel_operator sameAs Filtro_Sobel.
• Sobel_operator sameAs m.02f2rs.
• Sobel_operator sameAs Q1757673.
• Sobel_operator sameAs Q1757673.
• Sobel_operator wasDerivedFrom Sobel_operator?oldid=605910937.
• Sobel_operator depiction Valve_original_(1).PNG.
• Sobel_operator isPrimaryTopicOf Sobel_operator.