fiascotopnm

fiascotopnm(1)              General Commands Manual             fiascotopnm(1)

NAME
       fiascotopnm - Convert compressed FIASCO image to PGM, or PPM

SYNOPSIS
       fiascotopnm [option]...  [filename]...

DESCRIPTION
       fiascotopnm  decompresses the named FIASCO files, or the Standard Input
       if no file is named, and writes the images as PGM, or  PPM  files,  de-
       pending on whether the FIASCO image is black and white or color.

OPTIONS
       All option names may be abbreviated; for example, --output may be writ-
       ten --outp or --ou. For all options an one letter short option is  pro-
       vided. Mandatory or optional arguments to long options are mandatory or
       optional for short options, too. Both short and long options  are  case
       sensitive.

       -o[name], --output=[name]
              Write  decompressed  image  to  the  file  name.ppm  (if PPM) or
              name.pgm (if PGM).  If name=- then produce the image file on the
              standard output. The optional argument name can be omitted, then
              the input filename is used as basename with the suffix  .ppm  or
              .pgm.  In  case  of  video streams, the frames are stored in the
              files name.N.ppm where N is the frame number (of the form  00..0
              -  99..9);  output  on  the standard output is not possible with
              video streams.

              If name is a relative path and the  environment  variable  FIAS-
              CO_IMAGES  is  a (colon-separated) list of directories, then the
              output file(s) are written to the first (writable) directory  of
              this list. Otherwise, the current directory is used to store the
              output file(s).

       -z, --fast
              Decompress images in the 4:2:0 format; i.e., each chroma channel
              is decompressed to an image of halved width and height. Use this
              option on slow machines when  the  desired  frame  rate  is  not
              achieved; the output quality is only slightly decreased.

       -d, --double
              Double  the  size of the X11 window both in width and height; no
              pixel interpolation is used, each pixel is just replaced by four
              identical pixels.

       -p, --panel
              Show  a panel with play, stop, pause, record and exit buttons to
              control the display of videos. When pressing the record  button,
              all frames are decompressed and stored in memory. The other but-
              tons work in the usual way.

       -m N, --magnify=N
              Set magnification of the decompressed image. Positive values en-
              large and negative values reduce the image width and height by a
              factor of 2^|N|.

       -s N, --smooth=N
              Smooth decompressed image(s) along the partitioning  borders  by
              the  given  amount N. N is 1 (minimum) to 100 (maximum); default
              is 70. When N=0, then the smoothing amount specified in the  FI-
              ASCO file is used (defined by the FIASCO coder).

       -F N, --fps=N
              Set  number  of  frames per second to N. When using this option,
              the frame rate specified in the FIASCO file is overridden.

       -v, --version
              Print fiascotopnm version number, then exit.

       -f name, --config=name
              Load parameter file name to initialize the options of fiascotop-
              nm.   See file system.fiascorc for an example of the syntax. Op-
              tions of fiascotopnm are set by any of the following methods (in
              the specified order):

              1) Global ressource file /etc/system.fiascorc

              2) $HOME/.fiascorc

              3) command line

              4) --config=name

       -h, --info
              Print brief help, then exit.

       -H, --help
              Print detailed help, then exit.

EXAMPLES
       fiascotopnm foo.wfa >foo.ppm
              Decompress the FIASCO file "foo.wfa" and store it as "foo.ppm".

       fiascotopnm -o foo1.wfa foo2.wfa
              Decompress  the FIASCO files "foo1.wfa" and "foo2.wfa" and write
              the frames to the image files "foo1.wfa.ppm" and "foo2.wfa.ppm".

       fiascotopnm -oimage foo1.wfa
              Decompress the FIASCO file "foo1.wfa" and write all 15 frames to
              the image files "image.00.ppm", ... , "image.14.ppm".

       fiascotopnm --fast --magnify=-1 --double video.wfa >stream.ppm
              Decompress the FIASCO file "video.wfa".  The decompression speed
              is as fast as possible: the image is decompressed (in 4:2:0 for-
              mat)  at  a  quarter of its original size; then the image is en-
              larged again by pixel doubling.

FILES
       /etc/system.fiascorc
              The systemwide initialization file.
       $HOME/.fiascorc
              The personal initialization file.

ENVIRONMENT
       FIASCO_IMAGES
              Save path for image files. Default is "./".
       FIASCO_DATA
              Search path for FIASCO files. Default is "./".

SEE ALSO
       pnmtofiasco(1), pnm(5)

       Ullrich Hafner,  Juergen  Albert,  Stefan  Frank,  and  Michael  Unger.
       Weighted Finite Automata for Video Compression, IEEE Journal on Select-
       ed Areas In Communications, January 1998
       Ullrich Hafner. Low Bit-Rate Image and Video Coding with  Weighted  Fi-
       nite  Automata, Ph.D. thesis, Mensch & Buch Verlag, ISBN 3-89820-002-7,
       October 1999.

AUTHOR
       Ullrich Hafner <hafner@bigfoot.de>

                                 July 12, 2000                  fiascotopnm(1)