pgmedge man page on BSDOS

Man page or keyword search:  
man Server   6284 pages
apropos Keyword Search (all sections)
Output format
BSDOS logo
[printable version]



pgmedge(1)					     pgmedge(1)

NAME
       pgmedge - edge-detect a portable graymap

SYNOPSIS
       pgmedge [pgmfile]

DESCRIPTION
       Reads  a portable  graymap as input.  Outlines the edges,
       and writes a  portable  graymap	as  output.   Piping  the
       result  through	pgmtopbm  -threshold and playing with the
       threshold value will give a bitmap of the edges.

       The  edge  detection  technique	used  is  to   take   the
       Pythagorean  sum of  two	 Sobel	gradient operators at 90
       degrees to each other.	For  more  details  see "Digital
       Image Processing" by Gonzalez and Wintz, chapter 7.

SEE ALSO
       pgmenhance(1), pgmtopbm(1), pgm(5), pbm(5)

AUTHOR
       Copyright (C) 1991 by Jef Poskanzer.

			 04 February 1990			1

[top]
                             _         _         _ 
                            | |       | |       | |     
                            | |       | |       | |     
                         __ | | __ __ | | __ __ | | __  
                         \ \| |/ / \ \| |/ / \ \| |/ /  
                          \ \ / /   \ \ / /   \ \ / /   
                           \   /     \   /     \   /    
                            \_/       \_/       \_/ 
More information is available in HTML format for server BSDOS

List of man pages available for BSDOS

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net