An Improved Algorithm for Impulse Noise by Median Filter

This paper proposes an algorithm to improve image processing for impulse noise by median filter. Isolate noise points in an image are detected by way of indiscernibility on rough sets. The improved algorithm enhances the detection capability of the single element of an image. Impulse noise is removed by a method of improvement of choice of threshold and filtering templates of median filter. Experiment simulation showed that the method of image enhancement proposed is superior to the traditional method in effectively improving image degradation and image clarity.