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Comparative Analysis of BM3D and Complex Wavelet Transform based Image Denoising Techniques

S. Swarnalatha*, P. Satyanarayana**, B. Shoban Babu***

* Associate Professor, Department of Electronics and Communication Engineering, Sri Venkateswara University College of Engineering, Tirupati, India.

** Professor, Department of Electronics and Communication Engineering, Annamacharya Institute of Technology and Sciences, Tirupati, India.

Periodicity:July - September'2015
DOI : https://doi.org/10.26634/jip.2.3.3602

Abstract

This paper presents a comparison between the BM3D and Complex Wavelet Transform based image denoising techniques based on their performance analysis. Complex Wavelet Transforms overcome the limitations of classic Discrete Wavelet Transforms such as, shift sensitivity, poor directionality. Block Matching with 3D filtering (BM3D) technique is a combination of spatial and transform domain filtering techniques. BM3D employs the spatial filtering like Wiener Filtering, and transform based techniques such as Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT); and fusing all the filtered results into a single image to accomplish better performance. As the BM3D techniques use both the spatial and transform based filtering techniques, it achieves a better performance than that of the Complex Wavelet Transforms. However, BM3D based image denoising technique consumes more time than that of Wavelet Transform based image denoising techniques.

Keywords

Block matching with 3D filtering (BM3D), Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT), Dual Tree Complex Wavelet Transform (DTCWT), Hyperanalytic Wavelet Transform (HWT), Hyperanalytic Dual Tree Complex Wavelet Transform (HDTCWT), Additive White Gaussian Noise (AWGN)

How to Cite this Article?

Swarnalatha, S., Satyanarayana, P., and Babu, B.S. (2015). Comparative Analysis of BM3D and Complex Wavelet Transform based Image Denoising Techniques. i-manager’s Journal on Image Processing, 2(3), 19-28. https://doi.org/10.26634/jip.2.3.3602

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