version 1, including all changes.
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perry |
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rawtoppm |
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!!!rawtoppm |
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NAME |
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SYNOPSIS |
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DESCRIPTION |
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OPTIONS |
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SEE ALSO |
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AUTHOR |
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---- |
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!!NAME |
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rawtoppm - convert raw RGB bytes into a portable pixmap |
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!!SYNOPSIS |
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__rawtoppm__ [[__-headerskip__ ''N''] |
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[[__-rowskip__ ''N''] |
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[[__-rgb__|__-rbg__|__-grb__ |
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|__-gbr__|__-brg__|__-bgr__ ] |
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[[__-interpixel__|__-interrow__] ''width height'' |
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[[''imagedata''] |
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!!DESCRIPTION |
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Reads raw RGB bytes as input. Produces a portable pixmap as |
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output. The input file is just RGB bytes. You have to |
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specify the width and height on the command line, since the |
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program obviously can't get them from the file. The maxval |
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is assumed to be 255. If the resulting image is upside down, |
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run it through __pnmflip -tb .__ |
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!!OPTIONS |
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__-headerskip__ |
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If the file has a header, you can use this flag to skip over |
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it. |
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__-rowskip__ |
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If there is padding at the ends of the rows, you can skip it |
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with this flag. |
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__-rgb -rbg -grb -gbr -brg -bgr__ |
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These flags let you specify alternate color orders. The |
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default is __-rgb__. |
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__-interpixel -interrow__ |
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These flags let you specify how the colors are interleaved. |
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The default is __-interpixel__, meaning interleaved by |
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pixel. A byte of red, a byte of green, and a byte of blue, |
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or whatever color order you specified. __-interrow__ |
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means interleaved by row - a row of red, a row of green, a |
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row of blue, assuming standard rgb color order. An |
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__-interplane__ flag - all the red pixels, then all the |
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green, then all the blue - would be an obvious extension, |
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but is not implemented. You could get the same effect by |
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splitting the file into three parts (perhaps using |
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''dd''), turning each part into a PGM file with rawtopgm, |
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and then combining them with rgb3toppm. |
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!!SEE ALSO |
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ppm(5), rawtopgm(1), rgb3toppm(1), pnmflip(1) |
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!!AUTHOR |
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Copyright (C) 1991 by Jef Poskanzer. |
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