Novel detail-preserving robust RM-KNN filters with impulsive noise suppression for image processing

Volodymyr I. Ponomaryov; Oleksiy B. Pogrebnyak; Luis Sanchez Estrada

doi:10.1117/12.316545

8 July 1998 Novel detail-preserving robust RM-KNN filters with impulsive noise suppression for image processing

Volodymyr I. Ponomaryov, Oleksiy B. Pogrebnyak, Luis Sanchez Estrada

Proceedings Volume 3389, Hybrid Image and Signal Processing VI; (1998) https://doi.org/10.1117/12.316545
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

We introduce novel robust filtering applicable to image processing. They were derived using RM-type point estimations and the restriction technique of the well-known specific for image processing KNN filter. The derived RM-KNN filters effectively remove impulsive noise while edge and fine details are preserved. The proposed filters were tested on simulated images and real data and were provided excellent visual quality of the processed images and good quantitative quality in the MSE sense over standard median filter. Recommendations to obtain best processing result by proper selection of derived filter parameters are given. Two derived filters are suitable for impulsive noise reduction in any image processing applications. One can use the RM-KNN filters as the first stage of image enhancement following by any non-robust techniques such as Sigma-filter on the second stage.

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Volodymyr I. Ponomaryov, Oleksiy B. Pogrebnyak, and Luis Sanchez Estrada "Novel detail-preserving robust RM-KNN filters with impulsive noise suppression for image processing", Proc. SPIE 3389, Hybrid Image and Signal Processing VI, (8 July 1998); https://doi.org/10.1117/12.316545

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KEYWORDS

Image filtering

Digital filtering

Image processing

Filtering (signal processing)

Linear filtering

Image enhancement

Image quality

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