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A new adaptive separable median filter for removing blocking effects

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2 Author(s)
Y. -F. Hsu ; Nat. Tsing Hua Univ., Hsinchu, Taiwan ; Y. -C. Chen

A novel adaptive separable median filter as a postfilter is presented for removing the blocking effects which generally originate from lower-bit-rate image transmission. This filter adaptively transforms from a traditional median filter to a low-pass filter progressively when the filter is close to the position of blocking effects. Simulation results demonstrate that this filter is extremely useful not only in removing the blocking effects, but also in maintaining the main advantages of the median filter such as edge preservation and noise reduction

Published in:

IEEE Transactions on Consumer Electronics  (Volume:39 ,  Issue: 3 )