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Golay Neighbourhoods

Keywords: binary image, morphological transforms

Categories: Pattern Recognition and Image Processing , Vision


Author(s): Dave Reynolds

A set of local patterns, devised by Golay for transformations on hexagonally connected binary images. They fall into the general class of morphological transforms (`hit or miss'). Each pattern is a hexagon of `true', `false' and `do not care' entries. When a pattern matches the neighbourhood of a pixel in the image that pixel can be marked (to detect special points like line ends), set true (to `thicken' the image) or set false (to `thin' or `skeletonise' the image). See Local Grey-level Operations. Generalisations of such operations are now used for processing images with square connectivity.


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