Prescanned minmax centre-weighted filters for image restoration

  title={Prescanned minmax centre-weighted filters for image restoration},
  author={Jianhua Wang},
The prescanned minmax centre-weighted (PMCW) filter, which is capable of restoring images severely corrupted by impulsive noise, is presented. Before filtering, the input image is scanned by a running window; the maximum and minimum of each ranked set in the running window are grouped as the first subset, and the rest as the second subset. Then, the two subsets are filtered in sequence by a centered weight filter. It is shown that filtering results in the first subset provide the extension… CONTINUE READING