News Updates Thursday 28th Mar 2024 :
  • Welcome to INPRESSCO, world's leading publishers, We have served more than 10000+ authors
  • Articles are invited in engineering, science, technology, management, industrial engg, biotechnology etc.
  • Paper submission is open. Submit online or at editor.ijcet@inpressco.com
  • Our journals are indexed in NAAS, University of Regensburg Germany, Google Scholar, Cross Ref etc.
  • DOI is given to all articles

Analysis of Wavelet Denoising with Different Types of Noises


Author : Kishan Shivhare and Gaurav Bhardwaj

Pages : 2212-2217
Download PDF
Abstract

There are several types of noises those affect quality of an image such as Salt & pepper noise, Poisson noise, Gaussian noise, Speckle noise etc. Wavelet is a powerful tool for denoising a variety of signals. Here an image of a college building has been taken for denoising purpose with the help of HAAR Transform. The noisy image is first decomposed into five levels to obtain different frequency bands. Then first soft and hard thresholding methods are saperately used to remove the noisy coefficients by fixing the optimum thresholding value at 0.15 and then both of thresholdings are used in hybrid manner. In this paper, analysis of a colored image is carried out with four different noises at zero mean and at 0.02 variance that are applied on the image to produce noisy images. In order to enhance the quality of the noisy images, performance parameters of denoised images must be estimated. The comparison between different denoised image is taken in terms of MSE (mean square error), PSNR (peak signal to noise ratio), RMSE (root mean square error), SNR (signal to noise ratio) and SSIM (structural similarity index).

Keywords: Salt & Pepper noise, Speckle noise, Gaussian noise, Poisson noise, Discrete Wavelet Transform, Soft thresholding, Hard thresholding, SNR, PSNR, SSIM, MSE, RMSE.

Article published in International Journal of Current Engineering and Technology, Vol.6, No.6 (Dec-2016)

Call for Papers
  1. IJCET- March/April 2024 Issue

    Submission Last Date
    30 April 2024
  2. DOI is given to all articles
  3. Current Issue
  4. IJTT-March-2024
  5. IJAIE-March-2024
  6. IJCSB-March-2024
  • Inpressco Google Scholar
  • Inpressco Science Central
  • Inpressco Global impact factor
  • Inpressco aap

International Press corporation is licensed under a Creative Commons Attribution-Non Commercial NoDerivs 3.0 Unported License
©2010-2023 INPRESSCO® All Rights Reserved