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Telecommunication Systems

, 40:17 | Cite as

Fuzzy clustering for colour reduction in images

  • Gerald SchaeferEmail author
  • Huiyu Zhou
Article

Abstract

The aim of colour quantisation is to reduce the number of distinct colour in images while preserving a high colour fidelity as compared to the original images. The choice of a good colour palette is crucial as it directly determines the quality of the resulting image. Colour quantisation can also be seen as a clustering problem where the task is to identify those clusters that best represent the colours in an image. In this paper we investigate the performance of various fuzzy c-means clustering algorithms for colour quantisation of images. In particular, we use conventional fuzzy c-means as well as some more efficient variants thereof, namely fast fuzzy c-means with random sampling, fast generalised fuzzy c-means, and a recently introduced anisotropic mean shift based fuzzy c-means algorithm. Experimental results show that fuzzy c-means performs significantly better than other, purpose built colour quantisation algorithms, and also confirm that the fast fuzzy clustering algorithms provide similar quantisation results to the full conventional fuzzy c-means approach.

Keywords

Fuzzy clustering Fuzzy c-means Colour quantisation Colour palette 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.School of Engineering and Applied ScienceAston UniversityBirminghamUK
  2. 2.School of Engineering and DesignBrunel UniversityUxbridgeUK

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