SFFTOBMP(1) User Commands SFFTOBMP(1)NAME
sfftobmp - SFF (Structured Fax File) Converter
SYNOPSIS
sfftobmp [options] INFILE1 [INFILE2 ..] [-o OUTSPEC]
OPTIONS -h or -help Show this message and exit
-v or -version Show version and exit
-b or -bmp Output is one monochrome BMP file for each fax page
-p or -pbm Output is one Portable Bitmap file for each fax page
-j or -jpg Output is one JPEG file for each fax page
-jNUM or -jpg=NUM Use jpeg quality of NUM percent (1..99)
-T or -tifs Output is one single-page TIFF file for each fax page
-t or -tif Output is one multi-paged TIFF file containing all pages
-r or -keepres Inhibit line doubling for low-res faxes
-d or -keepdate Keep date and time of input file for the output file(s)
The OUTSPEC is interpreted as:
- a filename if only one input file is given. - a directory name if more than one input file is given.
If OUTSPEC is omitted, the name of the output files will be derived from the input files and created in the same directory.
Output on stdout is available for multipaged TIFF output only (option "-t"). Use "-" as output filename in this case.
In case of TIFF output, you can specify the compression by using additional specifiers:
-tr resp. -Tr : CCITT modified Huffman RLE
-t4 resp. -T4 : CCITT Fax Class 4 compression
The default is CCITT Fax Class 3 compression.
SffToBmp Version 3.0 Copyright (C) 1998-2004 Peter Schaefer-Hutter and contributors This is free software, and you are welcome to redis-
tribute it under the terms of the enclosed license. See the file COPYING for details. If you haven't got this file, please contact
peter.schaefer@gmx.de. This program comes with ABSOLUTELY NO WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.
Contributors: Ulf Zibis <ulf.zibis@gmx.de> Gernot Hillier <ghillie@suse.de>
SEE ALSO sffview(1)
The full documentation for sfftobmp is in /usr/share/doc/sfftobmp/readme.gz
sfftobmp January 2005 SFFTOBMP(1)
Check Out this Related Man Page
FAX2TIFF(1) General Commands Manual 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 resultant image is a set of low resolution (98 lines/inch) or medium reso-
lution (196 lines/inch) pages, each of which is a single strip of data. The generated file conforms to the TIFF Class F (FAX) specifica-
tion 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 resolution 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).
. 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).
. 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
. An invalid 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.
%s: Bad 2D code word at scanline %d.
. An invalid Group 4 or 2D Group 3 code was encountered while decoding the input file. The row num-
ber 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 Apparatus 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)