Modified switching median filter with one more noise detector for impulse noise removal

Chung Chia Kang, Wen June Wang

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

In this paper, the switching median filter is modified by adding one more noise detector to improve the capability of impulse noise removal. The proposed impulse noise detector is established based on the rank order arrangement of the pixels in the sliding window. The original switching median filter cannot detect the noise pixel whose value is close to its neighbors if the threshold is designed for emphasizing the detail preservation. Therefore, it is hard to recognize a noise-like pixel as a noise or a noise-free pixel in the sliding window. The proposed impulse noise detector overcomes the above weakness such that the switching median filter is much effective in impulse noise removal.

Original languageEnglish
Pages (from-to)998-1004
Number of pages7
JournalAEU - International Journal of Electronics and Communications
Volume63
Issue number11
DOIs
StatePublished - Nov 2009

Keywords

  • Image processing
  • Impulse noise
  • Median filter
  • Rank order
  • Switching median filter

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