Histogram Weighted Mean Filter for Image Processing
Yang Qun · Dianzi xuebao · 2004
A new weighted mean filter,histogram weighted mean (HWM) filter,is proposed to restore images corrupted by salt pepper impulse noise.The idea is based on weighted mean filter,which uses the histogram function of the corrupted image as weight.Experimental results demonstrate that the proposed HWM filter is effective androbust for different noise ratio,ranging from 5% to 90%.When noise ratio exceeds70%,HWM filter gives superior performance compared with other known filters.