Performance Research on Iterative Methods for Image Deblurring
Mahendra B M1, Savita Sonoli2
1Mahendra B M, RV College of Engineering, Bengaluru (Karnataka), India.
2Dr. Savita Sonoli, Rao Bahadhur Y Mahabaleshwarappa Engineering College, Bellary (Karnataka), India.
Manuscript received on 22 July 2019 | Revised Manuscript received on 03 August 2019 | Manuscript Published on 10 August 2019 | PP: 1047-1056 | Volume-8 Issue-2S3 July 2019 | Retrieval Number: B11960782S319/2019©BEIESP | DOI: 10.35940/ijrte.B1196.0782S319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper introduces the iterative image restoration algorithms for the elimination of linearly varying blurs from the images degraded by motion blur and additive noise. Iterative algorithms are very operative for this applications since they include different types of prior knowledge about the class of reasonable solutions. These algorithms are robust in nature to the errors in estimating the blurring operators and can be used to remove the non-stationary blurs. Performance analysis and limitations of traditional approaches such as Inverse, Wiener and Constrained Least Square filters (CLS) are discussed with respect to the iterations. Role and choice of imposing a constraint on the solutions of the algorithms which gives better restoration results are discussed. Regularization methods are debated to Minimis extreme noise amplifications due to ill-posed conditions in the inverse deblurring problems and it is shown that the reduction of noise effects can be achieved by terminating the algorithm after finite number of iterations. It is shown that restoration algorithms with constraints and spatially adaptability reduces the effects of ringing artifacts significantly. The rate of convergence of the algorithms based on the variations in the number of iterations are discussed and performance analysis, limitations and Comparison with the experimental results are presented.
Keywords: Algorithm, Adaptable, Blur, Constrained, Comparison, Convergence, Deblurring, Restoration, Iterative, Ill Posed, Image, Least Squares, Performance, Regularization, Ringing, Spatially.
Scope of the Article: Image Security