Linux cli command pgmenhance

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command pgmenhance and provides detailed information about the command pgmenhance, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the pgmenhance.

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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 output.

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

In addition to the options common to all programs based on libnetpbm (most notably -quiet, see Common Options ), pgmenhance recognizes the following command line option:

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

SEE ALSO

pamedge(1) , pgm(1)

AUTHOR

Copyright (C) 1989 by Jef Poskanzer.

DOCUMENT SOURCE

This manual page was generated by the Netpbm tool ‘makeman’ from HTML source. The master documentation is at

http://netpbm.sourceforge.net/doc/pgmenhance.html

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