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The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986. Canny also produced a computational theory of edge detection explaining why the technique works.
The Canny–Deriche detector was derived from similar mathematical criteria as the Canny edge detector, ... Edge Detection Using Modified Firefly Algorithm ...
Deriche edge detector is an edge detection operator developed by Rachid Deriche in 1987. It is a multistep algorithm used to obtain an optimal result of edge detection in a discrete two-dimensional image. This algorithm is based on John F. Canny's work related to the edge detection (Canny's edge detector) and his criteria for optimal edge ...
The pixels with the largest gradient values in the direction of the gradient become edge pixels, and edges may be traced in the direction perpendicular to the gradient direction. One example of an edge detection algorithm that uses gradients is the Canny edge detector. Image gradients can also be used for robust feature and texture matching.
A color picture of an engine The Sobel operator applied to that image. The Sobel operator, sometimes called the Sobel–Feldman operator or Sobel filter, is used in image processing and computer vision, particularly within edge detection algorithms where it creates an image emphasising edges.
Canny has published several books, papers and articles. A selection: 1986. A computational approach to edge detection. IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 8, 1986, pp. 679–698. 1988. The Complexity of Robot Motion Planning. The ACM Distinguished Dissertation Series, Cambridge, MA: The MIT Press, 1988. 1993.
The Prewitt 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.
Pages in category "Edge detection" The following 9 pages are in this category, out of 9 total. ... Canny edge detector; D. Deriche edge detector; Discrete Laplace ...