NAME

       rawtoppm - convert a stream of raw RGB bytes to a PPM image

SYNOPSIS

       rawtoppm

       [-headerskip N]

       [-rowskip N]

       [ -rgb|-rbg|-grb |-gbr|-brg|-bgr ]

       [-interpixel|-interrow] width height

       [imagedata]

DESCRIPTION

       This program is part of Netpbm(1).

       rawtoppm  reads raw RGB bytes as input and produces a PPM image as output.  The input file
       is just RGB bytes.  You have to specify the width and height on the  command  line,  since
       the  program  obviously  can't get them from the file.  rawtoppm assumes the maxval of the
       input samples is 255, and makes the maxval of the output PPM 255.

       rawtoppm assumes the pixels come top first in the input  stream.   If  they  are  actually
       bottom first, the resulting PPM is upside down, so run it through pamflip -tb.

OPTIONS

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

       -headerskip
              Skip  over  this  many bytes at the beginning of the input stream.  Use this option
              when the input has some kind of header followed by a raster suitable for rawtoppm.

       -rowskip
              Skip this many bytes at the end of each row of the  raster.   (Some  input  streams
              have padding at the end of rows).

       -rgb -rbg -grb -gbr -brg -bgr
              This  option  specifies  the  order  of  the  color components for each pixel.  The
              default is -rgb.

       -interpixel -interrow
              These options specify how the colors are interleaved.  The default is  -interpixel,
              meaning  interleaved by pixel.  A byte of red, a byte of green, and a byte of blue,
              or whatever color order you specified.  -interrow means interleaved by row - a  row
              of  red,  a  row  of  green,  a row of blue, assuming standard rgb color order.  An
              -interplane option - all the red pixels, then all the green, then all  the  blue  -
              would  be  an  obvious  extension,  but is not implemented.  You could get the same
              effect by splitting the file into three parts (perhaps using dd), turning each part
              into a PGM file with rawtopgm, and then combining them with rgb3toppm.

SEE ALSO

       ppm(1), rawtopgm(1), rgb3toppm(1), pamflip(1)

AUTHOR

       Copyright (C) 1991 by Jef Poskanzer.

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/rawtoppm.html