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Nonlinear vector filtering for impulsive noise removal from color images

机译:非线性矢量滤波可从彩色图像中去除脉冲噪声

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摘要

A comprehensive survey of 48 filters for impulsive noise removal from color images is presented. The filters are formulated using a uniform notation and categorized into 8 families. The performance of these filters is compared on a large set of images that cover a variety of domains using three effectiveness and one efficiency criteria. In order to ensure a fair efficiency comparison, a fast and accurate approximation for the inverse cosine function is introduced. In addition, commonly used distance measures (Minkowski, angular, and directional-distance) are analyzed and evaluated. Finally, suggestions are provided on how to choose a filter given certain requirements.
机译:介绍了对48种用于从彩色图像中去除脉冲噪声的滤波器的全面调查。过滤器使用统一的符号表示,并分为8个族。使用三个有效性和一个效率标准,在覆盖各种域的大量图像上比较了这些滤镜的性能。为了确保公平的效率比较,引入了反余弦函数的快速而精确的近似值。此外,还分析和评估了常用的距离度量(Minkowski,角度和方向距离)。最后,提供有关在给定要求的情况下如何选择过滤器的建议。

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