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\
.\" This man page was generated by the Netpbm tool 'makeman' from HTML source.
.\" Do not hand-hack it! If you have bug fixes or improvements, please find
.\" the corresponding HTML page on the Netpbm website, generate a patch
.\" against that, and send it to the Netpbm maintainer.
.TH "Ppmdim User Manual" 0 "June 2002" "netpbm documentation"
.SH NAME
ppmdim - dim a PPM image
.UN synopsis
.SH SYNOPSIS
ppmdim
\fIdimfactor\fP
[\fIppmfile\fP]
.UN description
.SH DESCRIPTION
.PP
This program is part of
.BR "Netpbm" (1)\c
\&.
.PP
This program is largely obsoleted by the more general
.BR "\fBpamfunc\fP" (1)\c
\& (use the \fB-multiplier\fP
option). \fBppmdim\fP remains for backward compatibility and also
because its use of integer arithmetic may make it faster.
\fBppmdim\fP reads a PPM image input and diminishes its brightness by
the specified dimfactor. The dimfactor may be in the range from 0.0
(total blackness, deep night, nada, null, nothing) to 1.0 (original
picture's brightness).
.UN options
.SH OPTIONS
.PP
There are no command line options defined specifically
for \fBppmdim\fP, but it recognizes the options common to all
programs based on libnetpbm (See
.UR index.html#commonoptions
Common Options
.UE
\&.)
.UN seealso
.SH SEE ALSO
.BR "ppm" (1)\c
\&,
.BR "pamfunc" (1)\c
\&,
.UN author
.SH AUTHOR
Copyright (C) 1993 by Frank Neumann
.SH DOCUMENT SOURCE
This manual page was generated by the Netpbm tool 'makeman' from HTML
source. The master documentation is at
.IP
.B http://netpbm.sourceforge.net/doc/ppmdim.html
.PP
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