Efficient denoising of images using a nonaggressive median filtering scheme

Bhargav K. Mitra; Philip M. Birch; Rupert C. D. Young; Chris Chatwin

doi:10.1117/1.3509367

1 November 2010 Efficient denoising of images using a nonaggressive median filtering scheme

Bhargav K. Mitra, Philip M. Birch, Rupert C. D. Young, Chris Chatwin

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Optical Engineering, Vol. 49, Issue 11, 117004 (November 2010). https://doi.org/10.1117/1.3509367

Abstract

The paper proposes a nonaggressive median filtering scheme, with two settings, that can be used to restore images moderately corrupted with either of the two distinct types of impulse noise-fixed-valued and random-valued. The scheme benefits from the fact that its design requires neither the difficult selection of optimal image-data dependent threshold(s), nor any kind of prior training. The filter has been tested on various standard images contaminated with both varieties of impulse noise (not added simultaneously); the results obtained strongly validate the good performance of the process. The proposed approach fulfils all the requirements needed for use as a real-time video-processing component.

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

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Bhargav K. Mitra, Philip M. Birch, Rupert C. D. Young, and Chris Chatwin "Efficient denoising of images using a nonaggressive median filtering scheme," Optical Engineering 49(11), 117004 (1 November 2010). https://doi.org/10.1117/1.3509367

Published: 1 November 2010

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KEYWORDS

Digital filtering

Image filtering

Optical filters

Denoising

Bridges

Optical engineering

Image processing

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