A new generalized version of the median filter is proposed. The new version preserves clear definitions of image details while keeping the ability of removing the impulsive noise; it is still simple in principle and easy to use. The input–output relationship and noise-removing power of the new version are compared with those of the standard median filter.
© 1988 Optical Society of America
Kazuyoshi Itoh, Yoshiki Ichioka, and Tatsuya Minami, "Nearest-neighbor median filter," Appl. Opt. 27, 3445-3450 (1988)