pgmtoimgv - Portable Graymap to Pilot Image Viewer converter, version 2.1.

       Bug reports should be sent to Eric A. Howe (mu@trends.net).

pgmtoimgv  is a simple filter for converting Portable Graymaps to grayscale Pilot Image Viewer pdb files.
       The input pgm file must use the following palette unless you specify the -4 switch:
            P3
            4 1
            255
              0   0   0
             85  85  85
            170 170 170
            255 255 255
       if you specify -4, then your grayscale image must use this palette:
            P3
            16 1
            255
              0   0   0
             17  17  17
             34  34  34
             51  51  51
             68  68  68
             85  85  85
            102 102 102
            119 119 119
            136 136 136
            153 153 153
            170 170 170
            187 187 187
            204 204 204
            221 221 221
            238 238 238
            255 255 255
       If your PGM file doesn't use one of these palettes, use ppmquant(1) to convert your palette.

       If an image's width is not a multiple of 16 pixels, enough extra white pixels will be added at the  right
       side  to  ensure  alignment.   Images  will be padded, with white pixels, to a width and height of 160 if
       needed.

       Copyright (C) 1997,1998 Eric A. Howe <http://www.trends.net/~mu>.

       This  program  is  free  software;  you  can  redistribute it and/or modify it under the terms of the GNU
       General Public License as published by the Free Software Foundation; either version 2 of the License,  or
       (at your option) any later version.

       This  program  is  distributed in the hope that it will be useful, but WITHOUTANYWARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESSFORAPARTICULARPURPOSE.  See the GNU General  Public
       License for more details.

       You  should have received a copy of the GNU General Public License along with this program; if not, write
       to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

                                                    Sept 1997                                       PGMTOIMGV(1)

       pgmtoimgv - Portable Graymap to Pilot Image Viewer converter, version 2.1.

-h     Display a short summary of the command line options and exit.

       -v     Display the version and exit.

       -4     Use 4 bit grayscale (16 shades of gray).

       -ttitle
              Specify the title of the image (up to 31 characters).

       -nnotefile
              Specify the note file.  No note is attached to the image by default.

       -c     Produce a compressed image.

       -m     Produce a compressed image if it is smaller than the uncompressed version.  This  is  the  default
              compression mode.

       -u     Produce an uncompressed image.

       in     The input file.  The default is the standard input.

       out    The output file.  The default is the standard output.

imgvinfo(1), imgvtopnm(1), imgvview(1), pbmtoimgv(1), ppmimgvquant(1), pbm(5), pgm(5).

pgmtoimgv [-h] [-v] [-4] [-ttitle] [-nnotefile] [-{c|m|u}] [in [out]]