Pgmmedian User Manual(0) Pgmmedian User Manual(0) (NAME) pgmmedian - (Median Filter) PGM (SYNOPSIS) pgmmedian [-width=n] [-height=n] [-type=median_type] [-cutoff=int] [pnmfile] . . . (DESCRIPTION) Netpbm(1) . pgmmedian PGM (histogram sort) k (select kth value) . () . . (speckles) . ( ) . -height . pgmmedian -type -cutoff . (OPTIONS) libnetpbm ( -quiet ) pgmmedian : -cutoff int (cutoff) pgmmedian k . (maxval / ((width * height) - 1)) maxval width height cutoff pgmmedian k . -type . 250 . -width=n . . 3 . -height=n . . 3 . -type median_type cutoff . histogram_sort select. pgmmedian -cutoff . (REFERENCES) o "Collected Algorithms from ACM" Volume II, Algorithm 489 by Robert W. Floyd o "A Fast Two-Dimensional Median Filtering Algorithm" in "IEEE Transactions on Acoustics, Speech, and Signal Processing" Vol. ASSP-27, No. 1, February 1979 o "Digital Image Processing Algorithms" by Ioannis Pitas, Prentice Hall, 1993 ISBN 0-13-145814-0 (SEE ALSO) pgmnoise(1), pamaddnoise(1), pnmconvol(1), pgmmorphconv(1), pgm(1) (HISTORY) pgmmedian 10.29 ( 2005) Netpbm . Mike Burns ( ). (AUTHOR) (C) 1996 Mike Burns . (DOCUMENT SOURCE) Netpbm 'makeman' HTML . : http://netpbm.sourceforge.net/doc/pgmmedian.html netpbm documentation 20 January 2022 Pgmmedian User Manual(0)