Catalogue of Artificial Intelligence Techniques
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.
- Golay, M.J.E., Hexagonal parallel pattern transformations IEEE Transactions on Computers C-18 (1969) no.8 .