fiascotopnm
Convert compressed FIASCO image to PGM, or PPM
see also :
pnmtofiasco
Synopsis
fiascotopnm
[option]... [filename]...
add an example, a script, a trick and tips
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
format) at a quarter of its original size; then the image is
enlarged again by pixel doubling.
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, depending on whether the FIASCO image is black and
white or color.
options
All option
names may be abbreviated; for example, --output may be
written --outp or --ou. For all options an one letter short
option is provided. 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
FIASCO_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 buttons work in
the usual way.
-m N,
--magnify=N
Set magnification of the
decompressed image. Positive values enlarge 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
FIASCO 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 fiascotopnm. See file
system.fiascorc for an example of the syntax. Options
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.
environment
FIASCO_IMAGES
Save path for image files. Default is "./".
FIASCO_DATA
Search path for FIASCO files. Default is "./".
files
/etc/system.fiascorc
The systemwide initialization file.
$HOME/.fiascorc
The personal initialization file.
see also
pnmtofiasco ,
pnm
Ullrich Hafner,
Juergen Albert, Stefan Frank, and Michael Unger. Weighted
Finite Automata for Video Compression, IEEE Journal on
Selected Areas In Communications, January 1998
Ullrich Hafner. Low Bit-Rate Image and Video Coding with
Weighted Finite Automata, Ph.D. thesis, Mensch &
Buch Verlag, ISBN 3-89820-002-7, October 1999.
author
Ullrich Hafner
<hafner[:at:]bigfoot[:dot:]de>