A NEW ADAPTIVE SEPARABLE MEDIAN FILTER FOR REMOVING BLOCKING EFFECTS

In this paper, a new adaptive separable median filter as a post-filter is presented for removing the blocking effects which generally origin ate from lower bit-rate image transmission. The new filter adaptively transforms from a traditional median filter to a low-pass filter progr essively when the filter is close to the position of blocking effects. Simulation results demonstrate that the new filter is extremely usefu l not only in removing the blocking effects, but also in holding the m ain advantages of median filter such as edge preserving and noise redu cing.