The rational filter for image smoothing

被引：47
作者：
Ramponi, G
机构：
[1] DEEI, University of Trieste, Trieste
来源：
IEEE SIGNAL PROCESSING LETTERS | 1996年 / 3卷 / 03期
关键词：
D O I：
10.1109/97.481156
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A nonlinear operator is presented that is able to effectively attenuate the noise that corrupts an image while introducing small distortions on the image details. It is described by a rational function, i.e., by the ratio of two polynomials in the input variables. Notwithstanding its simplicity, this operator proves to be more powerful than conventional methods for many noise distributions.
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页码：63 / 65
页数：3
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