Abstract
Random valued impulse noise (RVIN) is one of the most frequently occurring noise in images. This paper presents a median based dual threshold system for removal of RVIN. Dual threshold value improves the accuracy of noise detection in noisy image. In proposed technique additional measures are taken for noise removal at boundary pixels by using zero. By means of simulation results, it has been confirmed that the proposed system improves the precision of the image denoising process and offers better image quality.
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