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Paper Title: A Survey on methods of removal of Salt and Pepper Noise
Authors Name: Ruhina Quazi , Taha Siddiqui , Rafat Kausar , Nida Shariya , Shumaila Anam
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Published Paper Id: IJNRD1803011
Published In: Volume 3 Issue 3, March-2018
Abstract: Image restoration is the process of restoring degraded images which cannot be taken again or the process of obtaining the image again is costlier. We can restore the images by prior knowledge of the noise or the disturbance that causes the degradation in the image. Image restoration is done in two domains: spatial domain and frequency domain. In spatial domain the filtering action for restoring the images is done by directly operating on the pixels of the digital image. In frequency domain the filtering action is done by mapping the spatial domain into the frequency domain by taking Fourier transform of the image function. By mapping the image into frequency domain an image can provide an insight for filtering operations. After the filtering, the image is remapped into spatial domain by inverse Fourier transform to obtain the restored image. Different noise models were studied. Different filtering techniques in both spatial and frequency domains, were studied and improved algorithms were written and simulated using Matlab. Restoration efficiency was checked by taking peak signal to noise ratio (PSNR) and mean square error (MSE) into considerations
Keywords: Adaptive median filter, Decision based filter, Median filter, Weiner filter, Salt-and-pepper noise
Cite Article: "A Survey on methods of removal of Salt and Pepper Noise ", International Journal of Novel Research and Development (, ISSN:2456-4184, Vol.3, Issue 3, page no.48-51, March-2018, Available :
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