rletopnm man page on Debian

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RLETOPNM(1)							   RLETOPNM(1)

NAME
       rletopnm	 - convert a Utah Raster Tools RLE image file into a PNM image
       file.

SYNOPSIS
       rletopnm	 [--alphaout={alpha-filename,-}]   [--headerdump|-h]   [--ver‐
       bose|-v] [--plain|-p] [rlefile|-]

       All options may be abbreviated to their minimum unique abbreviation and
       options and arguments may be in any order.

DESCRIPTION
       This program converts Utah Raster Toolkit  RLE  image  files  into  PNM
       image  files.   rletopnm	 handles four types of RLE files: Grayscale (8
       bit data, no color map), Pseudocolor (8 bit data	 with  a  color	 map),
       Truecolor  (24  bit data with color map), and Directcolor (24 bit data,
       no color map).  rletopnm generates a  PPM  file	for  all  these	 cases
       except for the Grayscale file, for which rletopnm generates a PGM file.

       rlefile	is  the RLE input file.	 If it is absent or -, the input comes
       from Standard Input.

OPTIONS
       --alphaout=alpha-filename
	      rletopnm creates a PGM (portable graymap)	 file  containing  the
	      alpha  channel  values  in  the input image.  If the input image
	      doesn't contain an alpha channel, the alpha-filename  file  con‐
	      tains all zero (transparent) alpha values.  If you don't specify
	      --alphaout, rletopnm does not generate an alpha file, and if the
	      input image has an alpha channel, rletopnm simply discards it.

	      If you specify - as the filename, rletopnm writes the alpha out‐
	      put to Standard Output and discards the image.

	      See pnmcomp(1) for one way to use the alpha output file.

       --verbose
	      This option causes rletopnm to  operate  in  verbose  mode.   It
	      prints messages about what it's doing, including the contents of
	      the RLE image header, to Standard Error.

       --headerdump
	      This option causes rletopnm to operate in header dump mode.   It
	      prints  the  contents of the RLE image header to Standard Error,
	      but does not produce any other output.

       --plain
	      This option causes the PNM output file  to  be  in  the  "plain"
	      (text)  format,  instead	of  the default "raw" (binary) format.
	      See ppm(5) and pgm(5) for details on the difference.

EXAMPLES
       rletopnm --verbose lenna.rle >lenna.ppm
	      While running in verbose mode, convert lenna.rle to  PPM	format
	      and store the resulting image as lenna.ppm.

       rletopnm --headerdump file.rle
	      Dump the header information of the RLE file called file.rle.

       rletopnm --alphaout=dartalpha.pgm dart.rle >dart.ppm
	      Convert  RLE file dart.rle to PPM format as dart.ppm.  Store the
	      alpha channel of dart.rle as dartalpha.pgm (if dart.rle  doesn't
	      have  an	alpha channel, store a fully transparent alpha mask as
	      dartalpha.pgm).

SEE ALSO
       pnmtorle(1), pnmconvol(1), pnm(5), ppm(5), pgm(5), urt(1), RLE(5)

AUTHOR
       Wes Barris
       Army High Performance Computing Research Center (AHPCRC)
       Minnesota Supercomputer Center, Inc.

       Modifications by Eric Haines to support raw and plain formats.

       Modifications by Bryan Henderson to create alpha files and use mnemonic
       options.

1				 13 April 2000			   RLETOPNM(1)
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