Real-Time Implementation of Order-Statistics Based Directional Filters

Details Real-Time Implementation of Order-Statistics Based Directional Filters Real-Time Implementation of Order-Statistics Based Directional Filters

2010-09-05

arxiv.org/abs/1009.0958v1

IET Image Processing 3 (2009) 1-9

Computer Science

Computer Vision and Pattern Recognition

Scientific paper

10.1049/iet-ipr:20080080

Vector filters based on order-statistics have proved successful in removing impulsive noise from color images while preserving edges and fine image details. Among these filters, the ones that involve the cosine distance function (directional filters) have particularly high computational requirements, which limits their use in time critical applications. In this paper, we introduce two methods to speed up these filters. Experiments on a diverse set of color images show that the proposed methods provide substantial computational gains without significant loss of accuracy.

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