A Robust Denoising Filter with Adaptive Edge Preservation

Authors:
Li-Cheng Chiu;Chiou-Shann Fuh
Affiliations:
Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan 10617;Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan 10617
Venue:
PCM '08 Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Year:
2008

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Abstract

To preserve edge information during noise removal, bilateral filtering is designed as a powerful denoising filter using Gaussian function with geometric and photometric information. Unfortunately, peak noise will be regarded as effective high-frequency information and degrade the performance of bilateral filter. We design a new robust denoising filter employing image pre-processing and high-frequency edge detection. This filter can preserve details and remove noise simultaneously and it performs better than bilateral filter.