rawtoppm(1)             UNIX System V(06 February 1991)             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.











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