rletopnm(1) - phpMan

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 argu-
       ments 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  han-
       dles  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 transparency channel
              values  in  the  input  image.   If the input image doesn't contain an transparency
              channel, the alpha-filename file contains all zero (transparent) transparency  val-
              ues.   If  you  don't specify --alphaout, rletopnm does not generate a transparency
              file, and if the input image has a transparency channel, rletopnm  simply  discards
              it.

              If  you specify - as the filename, rletopnm writes the transparency output to Stan-
              dard Output and discards the image.

              See pamcomp(1) for one way to use the transparency 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
       o      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


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

                  rletopnm --headerdump file.rle


       o      Convert  RLE file dart.rle to PPM format as dart.ppm.  Store the transparency chan-
              nel of dart.rle as dartalpha.pgm (if dart.rle doesn't have a transparency  channel,
              store a fully transparent transparency 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 Supercom-
       puter Center, Inc.

       Modifications by Eric Haines to support raw and plain formats.

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

DOCUMENT SOURCE
       This manual page was generated by the Netpbm tool 'makeman' from HTML source.  The  master
       documentation is at

              http://netpbm.sourceforge.net/doc/rletopnm.html

netpbm documentation                      13 April 2000                   Rletopnm User Manual(0)

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