# tgatoppm

Updated: 02 April 2000
Index

## NAME

tgatoppm - convert TrueVision Targa file into a portable pixmap

## SYNOPSIS

tgatoppm [--alphaout={alpha-filename,-}] [--headerdump] tga-filename

## DESCRIPTION

Reads a TrueVision Targa file as input. Produces a portable pixmap as output.

## OPTIONS

--alphaout=alpha-filename
  tgatoppm creates a PGM (portable graymap) file 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 pnmcomp for one way to use the alpha output file.

--headerdump
  Causes the header information to be dumped to stderr.

All options can be abbreviated to their shortest unique prefix. Should really be in PNM, not PPM.

## SEE ALSO

ppmtotga, pnmcomp, ppm

## AUTHOR

Partially based on tga2rast, version 1.0, by Ian J. MacPhedran.

Copyright (C) 1989 by Jef Poskanzer.

## Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR