fax2tiff man page on aLinux

Man page or keyword search:  
man Server   7435 pages
apropos Keyword Search (all sections)
Output format
aLinux logo
[printable version]

FAX2TIFF(1)							   FAX2TIFF(1)

NAME
       fax2tiff - create a TIFF Class F fax file from raw fax data

SYNOPSIS
       fax2tiff [ options ] [ -o output.tif ] input.raw

DESCRIPTION
       Fax2tiff	 creates  a  TIFF  file	 containing  CCITT  Group 3 or Group 4
       encoded data from one or more files containing ``raw'' Group 3 or Group
       4  encoded  data	 (typically  obtained  directly from a fax modem).  By
       default, each row of data in the resultant TIFF file is 1-dimensionally
       encoded	and padded or truncated to 1728 pixels, as needed.  The resul‐
       tant image is a set of low resolution (98 lines/inch) or medium resolu‐
       tion  (196  lines/inch) pages, each of which is a single strip of data.
       The generated file conforms to the TIFF Class F (FAX) specification for
       storing	facsimile  data.  This means, in particular, that each page of
       the data does not include the trailing return to control (RTC) code; as
       required	 for  transmission  by	the CCITT Group 3 specifications.  The
       old, ``classic'', format is created if the -c  option  is  used.	  (The
       Class F format can also be requested with the -f option.)

       The  default  name  of the output image is fax.tif; this can be changed
       with the -o option.  Each input file is assumed to be a	separate  page
       of  facsimile  data  from  the same document.  The order in which input
       files are specified on the command line	is  the	 order	in  which  the
       resultant pages appear in the output file.

OPTIONS
       Options that affect the interpretation of input data are:

       -3     Assume input data is CCITT Group 3 encoded (default).

       -4     Assume input data is CCITT Group 4 encoded.

       -U     Assume input data is uncompressed (Group 3 or Group 4).

       -1     Assume  input  data is encoded with the 1-dimensional version of
	      the CCITT Group 3 Huffman encoding algorithm (default).

       -2     Assume input data is 2-dimensional version of the CCITT Group  3
	      Huffman encoding algorithm.

       -P     Assume  input data is not EOL-aligned (default). This option has
	      effect with Group 3 encoded input only.

       -A     Assume input data is EOL-aligned. This option  has  effect  with
	      Group 3 encoded input only.

       -M     Treat input data as having bits filled from most significant bit
	      (MSB) to most least bit (LSB).

       -L     Treat input data as having bits filled  from  least  significant
	      bit (LSB) to most significant bit (MSB) (default).

       -B     Assume input data was encoded with black as 0 and white as 1.

       -W     Assume  input  data  was	encoded with black as 1 and white as 0
	      (default).

       -R     Specify the vertical resolution, in  lines/inch,	of  the	 input
	      images.  By default input are assumed to have a vertical resolu‐
	      tion of 196 lines/inch.  If images are low resolution facsimile,
	      a value of 98 lines/inch should be specified.

       -X     Specify  the  width, in pixels, of the input images.  By default
	      input are assumed to have a width of 1728 pixels.

       Options that affect the output file format are:

       -o     Specify the name of the output file.

       -7     Force output to be compressed with the  CCITT  Group  3  Huffman
	      encoding algorithm (default).

       -8     Force  output  to	 be  compressed with the CCITT Group 4 Huffman
	      encoding.

       -u     Force output to be uncompressed (Group 3 or Group 4).

       -5     Force output to be encoded with the 1-dimensional version of the
	      CCITT Group 3 Huffman encoding algorithm.

       -6     Force output to be encoded with the 2-dimensional version of the
	      CCITT Group 3 Huffman encoding algorithm (default).

       -a     Force the last bit of each End Of Line (EOL) code to land	 on  a
	      byte boundary (default). This ``zero padding'' will be reflected
	      in the contents of the Group3Options tag of the  resultant  TIFF
	      file. This option has effect with Group 3 encoded output only.

       -p     Do  not  EOL-align  output.  This option has effect with Group 3
	      encoded output only.

       -c     Generate "classic" Group 3 TIFF format.

       -f     Generate TIFF Class F (TIFF/F) format (default).

       -m     Force output data to have bits filled from most significant  bit
	      (MSB) to most least bit (LSB).

       -l     Force   output  data  to have bits filled from least significant
	      bit (LSB) to most significant bit (MSB) (default).

       -r     Specify the number of rows (scanlines) in	 each  strip  of  data
	      written  to  the	output	file.	By default (or when value 0 is
	      specified), tiffcp attempts to set the rows/strip that  no  more
	      than 8 kilobytes of data appear in a strip (with except of G3/G4
	      compression schemes). If you specify special value  -1  it  will
	      results  in  infinite  number  of the rows per strip. The entire
	      image will be the one strip in that case.	 This  is  default  in
	      case of G3/G4 output compression schemes.

       -s     Stretch  the input image vertically by writing each input row of
	      data twice to the output file.

       -v     Force fax2tiff to print the number of rows of data it  retrieved
	      from the input file.

       -z     Force output to be compressed with the LZW encoding.

DIAGNOSTICS
       The  following  warnings	 and errors come from the decoding routines in
       the library.

       Warning, %s: Premature EOL at scanline %d (x %d).\n.   The  input  data
       had  a row that was shorter than the expected width.  The row is padded
       with white.

       %s: Premature EOF at scanline %d (x %d).\n.  The	 decoder  ran  out  of
       data  in	 the  middle  of a scanline.  The resultant row is padded with
       white.

       %s: Bad code word at row %d, x %d\n.   An  invalid  Group  3  code  was
       encountered while decoding the input file.  The row number and horizon‐
       tal position is given.  The remainder of the input  row	is  discarded,
       while the corresponding output row is padded with white.

       %s: Bad 2D code word at scanline %d.\n.	An invalid Group 4 or 2D Group
       3 code was encountered while decoding the input file.  The  row	number
       and  horizontal	position  is given.  The remainder of the input row is
       discarded, while the corresponding output row is padded with white.

BUGS
       Input data are assumed to have a a ``top left'' orientation; it	should
       be possible to override this assumption from the command line.

SEE ALSO
       CCITT  Recommendation T.4 (Standardization of Group 3 Facsimile Appara‐
       tus for Document Transmission).

       The Spirit of TIFF Class F, an appendix to the TIFF  5.0	 specification
       prepared by Cygnet Technologies.

       tiffinfo(1), tiffdither(1), tiffgt(1), libtiff(3)

       Libtiff library home page: http://www.remotesensing.org/libtiff/

libtiff			       November 2, 2005			   FAX2TIFF(1)
[top]

List of man pages available for aLinux

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
...................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net