Impulsive noise removal using switching scheme and adaptive weighted median filters

Lianghai Jin; Hong Liu; Enmin Song; Xiangyang Xu

doi:10.1117/1.3292005

1 January 2010 Impulsive noise removal using switching scheme and adaptive weighted median filters

Lianghai Jin, Hong Liu, Enmin Song, Xiangyang Xu

Author Affiliations +

Optical Engineering, Vol. 49, Issue 1, 017004 (January 2010). https://doi.org/10.1117/1.3292005

Abstract

We present a new impulsive noise removal method, which combines a switching mechanism and adaptive weighted median filtering techniques. By utilizing four Laplacian operators and median-based comparison techniques to classify the image pixels into thin-line pixels, noise-free pixels, and noisy ones, the developed solution applies adaptive weighted median filtering operations only in the detected noisy locations to suppress impulsive noise, and keeps the other pixels unchanged. The simulation results exhibit the excellent performance gains of the proposed solution in suppressing impulsive noise with different contamination ratios over other prior-art methods in terms of both objective measurements and visual image quality.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Lianghai Jin, Hong Liu, Enmin Song, and Xiangyang Xu "Impulsive noise removal using switching scheme and adaptive weighted median filters," Optical Engineering 49(1), 017004 (1 January 2010). https://doi.org/10.1117/1.3292005

Published: 1 January 2010

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