APPLICATION OF ROUGH SETS IN IMAGE MEDIAN FILTER

摘要

An improved median filter algorithm based on Rough Sets is presented in the paper.The algorithm first divides the image into several parts and uses Rough Sets theory to classify the pixel in each part then noise pixels can be separated and be removed by median filtering.Compared with standard median filter, the results of computer simulation experiments show that this new filter has better filtering performance and can preserve detail information of image better.