Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   31559 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

ppmquantall(1)					   ppmquantall(1)

NAME
       ppmquantall  -  run  ppmquant  on  a bunch of files all at
       once, so they share a common colormap

SYNOPSIS
       ppmquantall [-ext extension] ncolors ppmfile ...

DESCRIPTION
       Takes a bunch of portable pixmap as input.  Chooses  ncol_
       ors  colors  to best represent all of the images, maps the
       existing colors to the new ones, and overwrites the  input
       files with the new quantized versions.

       If  you	don't want to overwrite your input files, use the
       -ext option.  The output files are then named the same  as
       the  input files, plus a period and the extension text you
       specify.

       Verbose explanation: Let's say you've got a dozen  pixmaps
       that  you  want	to  display on the screen all at the same
       time.  Your screen can only display 256 different  colors,
       but the pixmaps have a total of a thousand or so different
       colors.	For a single pixmap you solve this  problem  with
       ppmquant; this script solves it for multiple pixmaps.  All
       it does is concatenate them together into one big  pixmap,
       run  ppmquant  on  that,	 and then split it up into little
       pixmaps again.

       (Note that another way to solve this problem  is	 to  pre-
       select a set of colors and then use ppmquant's -map option
       to separately quantize each pixmap to that set.)

SEE ALSO
       ppmquant(1), ppm(5)

BUGS
       It's a csh script.  Csh scripts are not portable to System
       V.   Scripts in general are not portable to non-Unix envi
       ronments.

AUTHOR
       Copyright (C) 1991 by Jef Poskanzer.

			   27 July 1990		   ppmquantall(1)

Vote for polarhome