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Optical Engineering

Effectual switching filter for removing impulse noise using a SCM detector
Author(s): Jin-xia Yuan; Hong-juan Zhang; Yi-de Ma
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Paper Abstract

An effectual method is proposed to remove impulse noise from corrupted color images. The spiking cortical model (SCM) is adopted as a noise detector to identify noisy pixels in each channel of color images, and detected noise pixels are saved in three marking matrices. According to the three marking matrices, the detected noisy pixels are divided into two types (type I and type II). They are filtered differently: an adaptive median filter is used for type I and an adaptive vector median for type II. Noise-free pixels are left unchanged. Extensive experiments show that the proposed method outperforms most of the other well-known filters in the aspects of both visual and objective quality measures, and this method can also reduce the possibility of generating color artifacts while preserving image details.

Paper Details

Date Published: 27 March 2012
PDF: 11 pages
Opt. Eng. 51(3) 037003 doi: 10.1117/1.OE.51.3.037003
Published in: Optical Engineering Volume 51, Issue 3
Show Author Affiliations
Jin-xia Yuan, Lanzhou Univ. (China)
Hong-juan Zhang, Lanzhou Univ. (China)
Yi-de Ma, Lanzhou Univ. (China)

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