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An improved rotation-invariant thinning algorithm

By Peter Rockett

Abstract

Ahmed & Ward have recently presented an elegant, rule-based rotation-invariant thinning algorithm to produce a single-pixel wide skeleton from a binary image. We show examples where this algorithm fails on two-pixel wide lines and propose a modified method which corrects this shortcoming based on graph connectivity

Year: 2005
OAI identifier: oai:eprints.whiterose.ac.uk:785

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