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2012 (Vol. 4, Issue: 17)
Article Information:

Image Denoising of Wavelet based Compressed Images Corrupted by Additive White Gaussian Noise

Shyam Lal and Mahesh Chandra
Corresponding Author:  Shyam Lal 

Key words:  Bivariate shrinkage function, fourth order PDE, hybrid filter, image denoising, natural images, ,
Vol. 4 , (17): 3108-3118
Submitted Accepted Published
March 12, 2012 April 03, 2012 September 01, 2012
Abstract:

In this study an efficient algorithm is proposed for removal of additive white Gaussian noise from compressed natural images in wavelet based domain. First, the natural image is compressed by discrete wavelet transform and then proposed hybrid filter is applied for image denoising of compressed images corrupted by Additive White Gaussian Noise (AWGN). The proposed hybrid filter (HMCD) is combination of non-linear fourth order partial differential equation and bivariate shrinkage function. The proposed hybrid filter provides better results in term of noise suppression with keeping minimum edge blurring as compared to other existing image denoising techniques for wavelet based compressed images. Simulation and experimental results on benchmark test images demonstrate that the proposed hybrid filter attains competitive image denoising performances as compared with other state-of-the-art image denoising algorithms. It is more effective particularly for the highly corrupted images in wavelet based compressed domain.
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  Cite this Reference:
Shyam Lal and Mahesh Chandra, 2012. Image Denoising of Wavelet based Compressed Images Corrupted by Additive White Gaussian Noise.  Research Journal of Applied Sciences, Engineering and Technology, 4(17): 3108-3118.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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