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Rawtoppm User Manual(0) 						  Rawtoppm User Manual(0)

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 bot-
       tom first, the resulting PPM is upside down, so run it through pamflip -tb.


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.

netpbm documentation			 06 February 1991		  Rawtoppm User Manual(0)
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