An efficient edge-preserving algorithm for removal of salt-and-pepper noise

Pei Yin Chen, Chih Yuan Lien

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)


In this letter, a novel algorithm for removing salt-and-pepper noise from corrupted images is presented. We employ an efficient impulse noise detector to detect the noisy pixels, and an edge-preserving filter to reconstruct the intensity values of noisy pixels. Extensive experimental results demonstrate that our method can obtain better performances in terms of both subjective and objective evaluations than those state-of-the-art impulse denoising techniques. Especially, the proposed method can preserve edges very well while removing impulse noise. Since our algorithm is algorithmically simple, it is very suitable to be applied to many real-time applications.

Original languageEnglish
Pages (from-to)833-836
Number of pages4
JournalIEEE Signal Processing Letters
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering
  • Applied Mathematics


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