Image Denoising Technique by using Various Filters

Abstract: In this paper, two novel image filters are presented. These filters, named as Far Distance Filter (FDF) and Near Distance Filter (NDF), are actually based on calculating the distance between image pixels and their neighbours in order to construct arbitrary values used to enhance abnormal pixels (noise). FDF and NDF use (5 x 5) kernel instead of the usual (3 x 3) kernel to produce better image results. The performance of proposed filters and the well-known mean filters is investigated through the measurement of PSNR and MSE. This performance shows clearly the efficiency of the proposed filters.

Keywords: Image enhancement, noise removal, spatial filters, near distance filter, far distance filter