Enhancing Image Quality via Robust Noise Filtering Using Redescending M-Estimators.

Entropy (Basel)

Unidad Profesional Interdiciplinaria de Ingeniería Campus Hidalgo, Instituto Politécnico Nacional, Pachuca 07738, Mexico.

Published: August 2023

In the field of image processing, noise represents an unwanted component that can occur during signal acquisition, transmission, and storage. In this paper, we introduce an efficient method that incorporates redescending M-estimators within the framework of Wiener estimation. The proposed approach effectively suppresses impulsive, additive, and multiplicative noise across varied densities. Our proposed filter operates on both grayscale and color images; it uses local information obtained from the Wiener filter and robust outlier rejection based on Insha and Hampel's tripartite redescending influence functions. The effectiveness of the proposed method is verified through qualitative and quantitative results, using metrics such as PSNR, MAE, and SSIM.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10453315PMC
http://dx.doi.org/10.3390/e25081176DOI Listing

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Enhancing Image Quality via Robust Noise Filtering Using Redescending M-Estimators.

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August 2023

Unidad Profesional Interdiciplinaria de Ingeniería Campus Hidalgo, Instituto Politécnico Nacional, Pachuca 07738, Mexico.

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