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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

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A review of recent advances in the hit-or-miss transform

Murray, Paul and Marshall, Stephen (2012) A review of recent advances in the hit-or-miss transform. Advances in Imaging and Electron Physics, 175. pp. 221-282.

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Abstract

The Hit-or-Miss Transform (HMT) is a well known morphological transform that is capable of identifying features in digital images. There has been significant interest in using and extending this transform since it was defined in the late sixties. A large number of authors have proposed extensions of the original binary HMT in order that it can be applied to greyscale data. Various researchers have also extended the HMT in different ways to make it more robust to noise. Other works describe extensions of the HMT which can be applied to colour images and 3D data. This paper reviews a number of these extensions with a particular focus on extensions of the HMT for processing greyscale data and for making the binary and greyscale HMTs more robust in the presence of noise. This paper takes the reader through 40 years of developments in the HMT before explaining the current state-of-the-art techniques in this interesting and topical area of research.