A Median Filtering Algorithm Based on Selected Point in Digital Image

In this paper an algorithm of median filtering based on selected point is introduced, and it improved the obscured phenomenon of the median filtering image. The algorithm based on the notion of pixel tags, find the contaminated pixels in the sub-image area. And median filter the pixels only. Experimental results show that the effect of the filtered image is ideal, and it has the advantages of faster processing and little damage on the image.