Local adaptive image restoration and enhancement with the use of DFT and DCT in a running window

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Abstract

On the base of local criteria of processing quality, a class of local adaptive linear filters for image restoration and enhancement is introduced. The filters work in a running window in the domain of DFT of DCT and have O (size of the window) computational complexity thanks to recursive algorithms of running DFT and DCT. The filter design and the recursive computation of running DCT are outlined and filtering for edge preserved noise suppression, blind image restoration and enhancement is demonstrated.

Original languageEnglish
Pages (from-to)2-13
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2825
DOIs
StatePublished - 1996
EventWavelet Applications in Signal and Image Processing IV - Denver, CO, United States
Duration: 6 Aug 19966 Aug 1996

Keywords

  • Adaptive filters
  • Image enhancement
  • Image restoration

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