rletopnm man page on CentOS

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Rletopnm User Manual(0)				       Rletopnm User Manual(0)

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

SYNOPSIS
       rletopnm

       [--alphaout={alpha-filename,-}] [--headerdump|-h]

       [--verbose|-v]

       [rlefile|-]

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

DESCRIPTION
       This program is part of Netpbm(1).

       rletopnm	 converts  Utah	 Raster	 Toolkit  RLE image files to 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), True‐
       color (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 pamcomp(1)foronewaytouse 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.

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

		  rletopnm --verbose lenna.rle >lenna.ppm

       ·      Dump the header information of the RLE file called file.rle:

		  rletopnm --headerdump file.rle

       ·      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):

		  rletopnm --alphaout=dartalpha.pgm dart.rle >dart.ppm

SEE ALSO
       pnmtorle(1), pnmconvol(1), pnm(1), ppm(1), pgm(1),

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.

netpbm documentation		 13 April 2000	       Rletopnm User Manual(0)
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