g3toxwd(1) [debian man page]

g3toxwd(1)						       mgetty+sendfax manual							g3toxwd(1)

NAME

       g3toxwd - converts a Group 3 fax file into a displayable xwd file

SYNOPSIS

       g3toxwd [-kludge] [-reversebits] [-scale N] [-aspect N] [-skiprows N] [-name xwdname] [g3file]

DESCRIPTION

       Reads a Group 3 fax file (raw or digifax) as input. If no filename is given, stdin is used.  Produces a displayable xwd file as output.

OPTIONS

       -kludge
	      Tells g3toxwd to skip the first lines for synchronisation.

       -reversebits
	      Tells  g3toxwd to interpret bits least-significant first, instead of the default most-significant first.	Apparently some fax modems
	      do it one way and others do it the other way.  If you get a whole bunch of "invalid code" messages, try using this flag.

       -scale N
	      Scale the output to match the printer resolution and paper size, the default of 0.58 will do in most cases.

       -aspect N
	      Scale the output to match the printer resolution and paper size, the default of 1.0 will do for high resolution faxes, 2.0  will	do
	      for low resolution faxes.

       -skiprows N
	      N faxrows of the input file will be skipped.

       -name <name>
	      The name <name> will be put in the output file for xwd.

       REFERENCES
	      The standard for Group 3 fax is defined in CCITT Recommendation T.4.

BUGS

       Long  fax  files are not handled properly.  Output size fixed 1000x1350 pixels defined at compile time.	Please report bugs to chel@vangen-
       nip.nl

SEE ALSO

       pbmtog3(1), pbm(5), g3cat(1), sendfax(8), mgetty(1)

AUTHOR

       g3toxwd is Copyright (C) 1994 by Chel van Gennip, <chel@vangennip.nl>. Sources of g3topbm and pbmtoxwd programs in Jef  Poskanzers  pbmplus
       package have been used, but al lot of code has been changed or added to simplify its use for displaying faxes. Value added: low use of mem-
       ory, fast scaling.

Chel								     22 may 94								g3toxwd(1)

g32pbm(1)						       mgetty+sendfax manual							 g32pbm(1)

NAME

       g32pbm - convert a Group 3 fax file into a portable bitmap

SYNOPSIS

       g32pbm [-reversebits] [-stretch] [g3file]

DESCRIPTION

       Reads a Group 3 fax file (raw or digifax) as input. If no filename is given, stdin is used.  Produces a portable bitmap as output.

OPTIONS

       -r     Tells  g32pbm  to  interpret bits least-significant first, instead of the default most-significant first ("-reversebits").  Some fax
	      modems do it one way and others do it the other way. If you get a whole bunch of "invalid code" messages (nearly one per line),  try
	      using this flag.

       -s     Double  each  horizontal row of the fax file in the pbm file ("-stretch)".  You can use this to adjust the aspect ratio of a "normal
	      resolution" fax file to match that of a "fine resolution" fax file.  This might not seem like it belongs here, but it's much  faster
	      than  using pnmscale|pgmtopbm later.  -s is activated automatically if the file is specified on the command line and its name starts
	      with "fn..." (fax/normal).

       -l(aserjet)
	      Instead of a portable bitmap (PBM), output HP laserjet files, suitable for direct printing on a HP laserjet or desjket.

       -d <dpi>
	      Scale output to <dpi> dots per inch before printing. Normal FAX resolution is 204x196 dpi (fine mode), or 204x98 dpi (normal  mode).
	      In LaerJet mode, only the values 75, 150 and 300 are allowed for <dpi>.

       -t     turn image by 90 degrees clockwise. Multiple -t commands increase angle, that is, -t -t will turn it upside down, and so on.

       -?     Print a short command syntax.

REFERENCES

       The standard for Group 3 fax is defined in CCITT Recommendation T.4.

BUGS

       g32pbm  could  be  smarter  about  the  image width, at the moment, the maximum width is 1728 pixels, and the maximum height is 4300 lines.
       Everything bigger is just cut off.

       Only 'raw' pbm files are created.

       Scaling is too slow.

       Turning is too slow (and not yet fully implemented either).

SEE ALSO

       pbm2g3(1), pbm(5), g3cat(1), sendfax(8), mgetty(1)

AUTHOR

       g32pbm is Copyright (C) 1993 by Gert Doering, <gert@greenie.muc.de>. It is similar to the g3topbm program in Jef Poskanzers  pbmplus  pack-
       age, but it's a complete re-write. No code is copied.

greenie 							     27 Oct 93								 g32pbm(1)