NAME

       pnmtorle - convert a Netpbm image file into an RLE image file.

SYNOPSIS

       pnmtorle

       [-header] [-verbose] [-alpha] [-outfile=outfile] [pnmfile]

       Minimum  unique  abbreviation of option is acceptable.  You may use double hyphens instead
       of single hyphen to denote options.  You may use white space in place of the  equals  sign
       to separate an option name from its value.

DESCRIPTION

       This program is part of Netpbm(1).

       This  program  converts  Netpbm  image files into Utah RLE image files.  You can include a
       transparency mask.  If the input is a multiple image file, the output consists of  several
       concatenated RLE images.

       pnmfile  is  the name of the Netpbm image input file.  If you don't specify this argument,
       input is from Standard Input.

       The RLE file will contain either a three channel color image (24 bits) or a single channel
       grayscale  image (8 bits) depending upon the type of Netpbm input.  If the Netpbm input is
       color, the RLE output is 3 channel 24 bit color.  If the  Netpbm  input  is  grayscale  or
       black and white, the RLE output is single channel grayscale.

OPTIONS

       In addition to the options common to all programs based on libnetpbm (most notably -quiet,
       see
        Common Options ⟨index.html#commonoptions⟩ ), pnmtorle recognizes  the  following  command
       line options:

       -verbose
                This option will cause pnmtorle to operate in verbose mode.  The
                program writes header information to Standard Error.  Actually, there is not
                much header information stored in a Netpbm file, so this information is
                minimal.

              Before Netpbm 10.98 (March 2022), this option is just -v.

       -header
              This  option  causes  the  program  to  dump  the  header of the Netpbm image to be
              Standard Error without converting the file.  It is equivalent to using the -verbose
              option except that no file conversion takes place.

              Before Netpbm 10.98 (March 2022), this option is just -h.

       -alpha This  option causes pnmtorle to include a transparency channel in the output image.
              The transparency channel is based on the image: Wherever  a  pixel  is  black,  the
              corresponding transparency value is transparent.  Everywhere else, the transparency
              value is fully opaque.

       -outfile outfile
              If you specify this option, pnmtorle writes the output to this file.  If outfile is
              - or you don't specify -outfile, pnmtorle writes the output to Standard Output.

              Before Netpbm 10.98 (March 2022), this option is just -o.and
                  must be separated from its value by a space, not an equal sign.

EXAMPLES

          pnmtorle -verbose file.ppm -outfile=file.rle

       While  running in verbose mode, convert file.ppm to RLE format and store resulting data in
       file.rle.

          pnmtorle -header file.pgm

       Dump the header information of the Netpbm file called file.pgm.

SEE ALSO

       rletopnm(1)

AUTHOR

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

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/pnmtorle.html