Man1 - tgatoppm.1
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NAME
tgatoppm - convert TrueVision Targa file to a PPM image
SYNOPSIS
tgatoppm [*–alphaout=*{alpha-filename,*-}] [–headerdump*] tga-filename
DESCRIPTION
This program is part of *Netpbm*(1)
tgatoppm reads a TrueVision Targa file as input and produces a PPM image as output.
OPTIONS
All options can be abbreviated to their shortest unique prefix.
- *–alphaout=*/alpha-filename/
- tgatoppm * creates a PGM image containing the alpha channel values in the input image. If the input image doesn’t contain an alpha channel, the alpha-filename file contains all zero (transparent) alpha values. If you don’t specify *–alphaout, tgatoppm does not generate an alpha file, and if the input image has an alpha channel, tgatoppm simply discards it.
If you specify - as the filename, tgatoppm writes the alpha output to Standard Output and discards the image.
See *pamcomp*(1) for one way to use the alpha output file.
- –headerdump
- Causes tgatoppm to dump information from the TGA header to Standard Error.
SEE ALSO
*ppmtotga*(1) , *pamcomp*(1) , *ppm*(5)
AUTHOR
Partially based on tga2rast, version 1.0, by Ian J. MacPhedran.
Copyright (C) 1989 by Jef Poskanzer.