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Image and Signal Processing, Congress on (2008)
May 27, 2008 to May 30, 2008
ISBN: 978-0-7695-3119-9
pp: 426-431
The paper proposes an improved fast and efficient decision-based algorithm for the restoration of images that are highly corrupted by Salt-and-Pepper noise. The new algorithm utilizes previously processed neighboring pixel values to get better image quality than the one utilizing only the just previously processed pixel value. The proposed algorithm is faster and also produces better result than a Standard Median Filter (SMF), Adaptive Median Filters (AMF), Cascade and Recursive non-linear filters. The proposed method removes only the noisy pixel either by the median value or by the mean of the previously processed neighboring pixel values. Different images have been tested by using the proposed algorithm (PA) and found to produce better PSNR and SSIM values.
decision-based filter, impulse noise, median fitler, salt-and-pepper noise

M. S. Nair, R. Tatavarti and K. Revathy, "An Improved Decision-Based Algorithm for Impulse Noise Removal," Image and Signal Processing, Congress on(CISP), vol. 01, no. , pp. 426-431, 2008.
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