biasbat(1)

1biasbat(1)                      C-Munipack 1.2                      biasbat(1)
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NAME

6       biasbat - utility for bias correction
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SYNOPSIS

9       biasbat [ options ] bias-file input-files ...
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DESCRIPTION

12       The  biasbat command applies bias correction to a set of source frames.
13       The bias correction is applied in  advanced  calibration  scheme  only,
14       please refer to documentation about the calibration of CCD frames.
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16       The  source frames and the bias frame must be in the FITS format and of
17       same dimensions. The output file is written in the FITS format too.
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INPUT FILES

20       Names of input files can be specified directly  on  a  command-line  as
21       command arguments; it is allowed to use the usual wildcard notation. In
22       case the input files are placed outside the working directory, you have
23       to specify the proper path relative to the current working directory.
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25       Alternatively,  you  can  also  prepare a list of input file names in a
26       text file, each input file on a separate line. It is not allowed to use
27       the  wildcard  notation here. Use the -i option to instruct the program
28       to read the file.
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OUTPUT FILES

31       By default, output files are stored to the current  working  directory.
32       Their  names are derived from the command name followed by a sequential
33       number starting by 1. Command options allows a  caller  to  modify  the
34       default naming of output files:
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36       The  -o  option sets the format string; it may contain a path where the
37       files shall be stored to. Special meaning has a  sequence  of  question
38       marks,  it  is replaced by the ordinal number of a file     indented by
39       leading zeros to the same number of decimal places as the number of the
40       question marks.
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42       By  means  of  the  -i  option,  you  can modify the initial value of a
43       counter.
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45       On request, the program can write a list of  output  files  to  a  text
46       file, use the -g option to specify a file name.
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OPTIONS

49       Options  are  used to provide extra information to customize the execu‐
50       tion of a command. They are specified as command arguments.
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52       Each option has a full form starting with two dashes  and  an  optional
53       short  form starting with one dash only. Options are case-sensitive. It
54       is allowed to merge two or more successive short options together. Some
55       options  require  a  value; in this case a value is taken from a subse‐
56       quent argument. When a full form is used, an option and its  value  can
57       also  be  separated  by  an  equal sign. When a short form is used, its
58       value can immediately follow the option.
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60       Whenever there is a conflict between a configuration file parameter and
61       an option of the same meaning, the option always take precedence.
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63       -i, --read-dirfile filepath
64              read list of input files from specified file; see the Files sec‐
65              tion for details.
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67       -g, --make-dirfile filepath
68              save list of output files to specified file, existing content of
69              the file will be overwritten; see the Files section for details.
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71       -o, --output-mask mask
72              set  output file mask (default=bout????.fts), see the Files sec‐
73              tion for details.
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75       -c, --counter value
76              set initial counter value (default=1), see the Files section for
77              details.
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79       -h, --help
80              print list of command-line parameters
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82       -q, --quiet
83              quiet mode; suppress all messages
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85       --version
86              print software version string
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88       --licence
89              print software licence
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91       --verbose
92              verbose mode; print debug messages
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EXAMPLES

95       biasbat -oout.fts bias.fts in.fts
96              The command applies the bias correction to the input file in.fts
97              using the file bias.fts as a correction  frame.  The  output  is
98              written to the output file out.fts.
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EXIT STATUS

101       The  command  returns  a zero exit status if it succeeds to process all
102       specified files. Otherwise, it will  stop  immediately  when  an  error
103       occurs and a nonzero error code is returned.
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HOME PAGE

106       http://c-munipack.sourceforge.net/
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BUG REPORTS

109       David Motl, dmotl@volny.cz
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COPYING

112       This program is free software; you can redistribute it and/or modify it
113       under the terms of the GNU General Public License  version  2  as  pub‐
114       lished by the Free Software Foundation.
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116       This  program  is  distributed  in the hope that it will be useful, but
117       WITHOUT ANY  WARRANTY;  without  even  the  implied  warranty  of  MER‐
118       CHANTABILITY  or  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
119       Public License for more details.
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