Nearest-neighbor median filter.
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.
Itoh
K
K
Ichioka
Y
Y
Minami
T
T