rawtoppm(1)

NAME

   rawtoppm - convert raw RGB bytes into a portable pixmap

SYNOPSIS

   rawtoppm [-headerskip N] [-rowskip N] [-rgb|-rbg|-grb |-gbr|-brg|-bgr ]
   [-interpixel|-interrow] width height [imagedata]

DESCRIPTION

   Reads raw RGB bytes as input.  Produces a portable  pixmap  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.   The  maxval  is assumed to be 255.  If the resulting
   image is upside down, run it through pnmflip -tb .

OPTIONS

   -headerskip
          If the file has a header, you can use this flag to skip over it.

   -rowskip
          If there is padding at the ends of the rows,  you  can  skip  it
          with this flag.

   -rgb -rbg -grb -gbr -brg -bgr
          These flags let you specify alternate color orders.  The default
          is -rgb.

   -interpixel -interrow
          These flags let you 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 flag  - 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(5), rawtopgm(1), rgb3toppm(1), pnmflip(1)

AUTHOR

   Copyright (C) 1991 by Jef Poskanzer.

                           06 February 1991                    rawtoppm(1)

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Free and Open Source Software