Rank-Ordered differences statistic based switching vector filter

Authors:
Guillermo Peris-Fajarnés;Bernardino Roig;Anna Vidal
Affiliations:
Universidad Politécnica de Valencia, E.P.S. de Gandia, Grau de Gandia (València), Spain;Universidad Politécnica de Valencia, E.P.S. de Gandia, Grau de Gandia (València), Spain;Universidad Politécnica de Valencia, E.P.S. de Gandia, Grau de Gandia (València), Spain
Venue:
ICIAR'06 Proceedings of the Third international conference on Image Analysis and Recognition - Volume Part I
Year:
2006

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Abstract

In this paper a new switching vector filter for impulsive noise removal in color images is proposed. The new method is based on a recently introduced impulse detector named Rank-Ordered Differences Statistic (ROD) which is adapted to be used in color images. The switching scheme between the identity operation and the Arithmetic Mean Filter is defined using the mentioned impulse detector. Extensive experiments show that the proposed technique is simple, easy to implement and significantly outperforms the classical vector filters presenting a competitive performance respect to recent impulsive noise vector filters.