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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 "Ppmdist User Manual" 0 "22 July 1992" "netpbm documentation"
+
+.SH NAME
+
+ppmdist - simplistic grayscale assignment for machine generated, color images
+
+.UN synopsis
+.SH SYNOPSIS
+
+\fBppmdist\fP
+
+[\fB-intensity\fP|\fB-frequency\fP]
+
+[\fIppmfile\fP]
+
+.UN description
+.SH DESCRIPTION
+.PP
+This program is part of
+.BR "Netpbm" (1)\c
+\&.
+.PP
+\fBppmdist\fP reads a PPM image as input and performs a simplistic
+grayscale assignment intended for use with grayscale or bitmap
+printers.
+.PP
+Often conversion from ppm to pgm will yield an image with contrast
+too low for good printer output.  The program maximizes contrast
+between the gray levels output.
+.PP
+A ppm input of n colors is read, and a pgm of n gray levels is
+written.  The gray levels take on the values 0..n-1, while maxval
+takes on n-1.
+.PP
+The mapping from color to stepped grayscale can be performed in
+order of input pixel intensity, or input pixel frequency (number of
+repetitions).
+.PP
+This program is helpful only for images with a very small number of
+colors.
+
+.UN options
+.SH OPTIONS
+.PP
+In addition to the options common to all programs based on libnetpbm
+(most notably \fB-quiet\fP, see 
+.UR index.html#commonoptions
+ Common Options
+.UE
+\&), \fBppmdist\fP recognizes the following
+command line options:
+
+
+.TP
+\fB-frequency\fP
+Sort input colors by the number of times a color appears in the
+input, before mapping to evenly distributed graylevels of output.
+
+.TP
+\fB-intensity\fP
+Sort input colors by their grayscale intensity, before mapping to
+evenly distributed graylevels of output.  This is the default.
+
+
+
+.UN seealso
+.SH SEE ALSO
+.BR "ppmtopgm" (1)\c
+\&,
+.BR "ppmhist" (1)\c
+\&,
+.BR "ppm" (1)\c
+\&
+
+.UN author
+.SH AUTHOR
+
+Copyright (C) 1993 by Dan Stromberg.
+.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/ppmdist.html
+.PP
+\ No newline at end of file