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   8420 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

Ppmtosixel User Manual(0)			     Ppmtosixel User Manual(0)

NAME
       ppmtosixel - convert a PPM image to DEC sixel format

SYNOPSIS
       ppmtosixel

       [-raw]

       [-margin]

       [ppmfile]

DESCRIPTION
       This program is part of Netpbm(1).

       ppmtosixel reads a PPM image as input and produces sixel commands (SIX)
       as output.  The output is formatted for color printing, e.g. for a  DEC
       LJ250 color inkjet printer.

       If  RGB	values	from  the  PPM file do not have maxval=100, ppmtosixel
       rescales them to maxval 100.  A printer	control	 header	 and  a	 color
       assignment  table  begin	 the  SIX file.	 Image data is in a compressed
       format by default.  A printer control footer ends the image file.

OPTIONS
       -raw   If you specify this, each pixel will be explicitly described  in
	      the  image  file.	 If -raw is not specified, output will default
	      to compressed format in  which  identical	 adjacent  pixels  are
	      replaced	by  'repeat  pixel'  commands.	A raw file is often an
	      order of magnitude larger than a compressed file and prints much
	      slower.

       -margin
	      If  you  don't specify -margin, the image will start at the left
	      margin (of the window, paper, or whatever).  If you  do  specify
	      -margin, a 1.5 inch left margin will offset the image.

PRINTING
       Generally,  sixel files must reach the printer unfiltered.  Use the lpr
       -x option or cat filename > /dev/tty0?.

LIMITATIONS
       Upon rescaling, truncation of the least significant bits of RGB	values
       may  result  in	poor color conversion.	If the original PPM maxval was
       greater than 100, rescaling also reduces the image  depth.   While  the
       actual  RGB  values  from  the  ppm file are more or less retained, the
       color palette of the LJ250 may not match the  colors  on	 your  screen.
       This seems to be a printer limitation.

SEE ALSO
       ppm(1)

AUTHOR
       Copyright (C) 1991 by Rick Vinci.

netpbm documentation		 26 April 1991	     Ppmtosixel User Manual(0)

Vote for polarhome