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

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

              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  con-
              tains 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 out-
              put to Standard Output and discards the image.

              See pnmcomp(1) for one way to use the alpha output file.

              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.

       ppmtotga(1), pnmcomp(1), ppm(5)

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

       Copyright (C) 1989 by Jef Poskanzer.

                                 02 April 2000                     tgatoppm(1)
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