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Tgatoppm User Manual
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tgatoppm
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Updated: 02 April 2000
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Table Of Contents
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NAME
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tgatoppm - convert TrueVision Targa file to a PPM image
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SYNOPSIS
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\fBtgatoppm\fR
[\fB--alphaout=\fR{\fIalpha-filename\fR,\fB-\fR}]
[\fB--headerdump\fR]
\fItga-filename\fR
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All options can be abbreviated to their shortest unique prefix.
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DESCRIPTION
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This program is part of Netpbm.
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\fBtgatoppm\fR reads a TrueVision Targa file as input and produces
a PPM image as output.
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OPTIONS
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.RS
.IP "\fB--alphaout=\fR\fIalpha-filename\fR"
\fBtgatoppm \fR creates a PGM image containing the alpha channel
values in the input image.  If the input image doesn't contain an
alpha channel, the \fIalpha-filename\fR file contains all zero
(transparent) alpha values.  If you don't specify \fB--alphaout\fR,
\fBtgatoppm\fR does not generate an alpha file, and if the input
image has an alpha channel, \fBtgatoppm\fR simply discards it.
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If you specify \fB-\fR as the filename, \fBtgatoppm\fR writes the
alpha output to Standard Output and discards the image.
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See \fBpamcomp\fR for one way to use
the alpha output file.
.IP "\fB--headerdump\fR"
Causes \fBtgatoppm\fR to dump information from the TGA header to
Standard Error.
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SEE ALSO
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\fBppmtotga\fR,
\fBpamcomp\fR,
\fBppm\fR
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AUTHOR
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Partially based on tga2rast, version 1.0, by Ian J. MacPhedran.
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Copyright (C) 1989 by Jef Poskanzer.
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Table Of Contents
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