Unix/Linux Go Back    


CentOS 7.0 - man page for pgmenhance (centos section 0)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


Pgmenhance User Manual(0)						Pgmenhance User Manual(0)

NAME
       pgmenhance - edge-enhance a PGM image

SYNOPSIS
       pgmenhance

       [-N]

       [pgmfile]

DESCRIPTION
       This program is part of Netpbm(1)

       pgmenhance  reads a PGM image as input, enhances the edges, and writes a PGM image as out-
       put.

       The edge enhancing technique is taken from Philip R. Thompson's 'xim'  program,	which  in
       turn  took  it  from  section  6 of 'Digital Halftones by Dot Diffusion', D. E. Knuth, ACM
       Transaction on Graphics Vol. 6, No. 4, October 1987, which in turn got it  from	two  1976
       papers by J. F. Jarvis et. al.

OPTIONS
       The  optional  -N option should be a digit from 1 to 9.	1 is the lowest level of enhance-
       ment; 9 is the highest.	The default is 9.

SEE ALSO
       pgmedge(1) , pgm(1)

AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.

netpbm documentation			 13 January 1989		Pgmenhance User Manual(0)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 06:49 AM.