Block median filters

Qurban Memon, Takis Kasparis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Rank and median filters (MFs) have become one of the standard techniques for suppressing noise of impulsive nature. A limitation of these filters is the high computational cost when implemented on general purpose computers. Several fast algorithms have been developed for specific types of signals. An alternative is computationally more efficient filters with MF-like performance. One proposed filter in this category with selectable trade-off between reduction of computation and MF-like performance is the block median filter (BMF). The BMF produces a median block at each window position, thus effectively reducing the total window steps and the computation. In this paper some statistical properties of the BMF and comparisons with the MF are presented. It is shown that for large window sized, the statistical properties of the BMF approach those of the MF.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsFriedrich O. Huck, Richard D. Juday
PublisherSociety of Photo-Optical Instrumentation Engineers
Number of pages10
ISBN (Print)0819418412
Publication statusPublished - 1995
Externally publishedYes
EventVisual Information Processing IV - Orlando, FL, USA
Duration: Apr 17 1995Apr 18 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherVisual Information Processing IV
CityOrlando, FL, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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