Detection of noise in digital images by using the averaging filter name COV

  • Authors:
  • Janusz Pawel Kowalski;Jakub Peksinski;Grzegorz Mikolajczak

  • Affiliations:
  • Basic Computer Science, Pomeranian Medical University, Szczecin, Poland;Faculty of Electrical Engineering, West Pomeranian University of Technology, Szczecin, Poland;Faculty of Electrical Engineering, West Pomeranian University of Technology, Szczecin, Poland

  • Venue:
  • ACIIDS'13 Proceedings of the 5th Asian conference on Intelligent Information and Database Systems - Volume Part II
  • Year:
  • 2013

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Abstract

One of the significant problems in digital signal processing is the filtering and reduction of undesired interference. Due to the abundance of methods and algorithms for processing signals characterized by complexity and effectiveness of removing noise from a signal, depending on the character and level of noise, it is difficult to choose the most effective method. So long as there is specific knowledge or grounds for certain assumptions as to the nature and form of the noise, it is possible to select the appropriate filtering method so as to ensure optimum quality. This chapter describes several methods for estimating the level of noise and presents a new method based on the properties of the smoothing filter.