Blocking artefact removal based on frequency analysis

Jiwu Huang, Yun Q. Shi, Xianhua Dai

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


An adaptive filtering algorithm for artefact removal in block coded images is presented. Based on an analysis of block artefacts in the frequency domain, the edge image is notch filtered and then used for a neighbourhood analysis. A space-variant filter is applied to the coded image adaptively, dependent on a frequency analysis.

Original languageEnglish (US)
Pages (from-to)2323-2325
Number of pages3
JournalElectronics Letters
Issue number24
StatePublished - Nov 26 1998

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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