Unix/Linux Go Back    


RedHat 9 (Linux i386) - man page for rletopnm (redhat section 1)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


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]  [--verbose|-v]  [--plain|-p]
       [rlefile|-]

       All options may be abbreviated to their minimum unique abbreviation and options and  argu-
       ments 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  contains  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 output to Standard Out-
	      put 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)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 03:11 PM.