A Spatial Median Filter for noise removal in digital images

Abstract

In this paper, six different image filtering algorithms are compared based on their ability to reconstruct noise-affected images. The purpose of these algorithms is to remove noise from a signal that might occur through the transmission of an image. A new algorithm, the spatial median filter, is introduced and compared with current image smoothing techniques. Experimental results demonstrate that the proposed algorithm is comparable to these techniques. A modification to this algorithm is introduced to achieve more accurate reconstructions over other popular techniques.