EnglishFrenchSpanish

Ad


OnWorks favicon

mBackground - Online in the Cloud

Run mBackground in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command mBackground that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


mBackground - Remove a background plane from a FITS image

SYNOPSIS


mBackground [-d level] [-n(o-areas)] [-s statusfile] in.fits out.fits A B C

mBackground [-t] [-d level] [-n(o-areas)] [-s statusfile] in.fits out.fits images.tbl
corrfile.tbl

DESCRIPTION


Remove a background plane from a FITS image. The background correction applied to the
image is specified as Ax+By+C, where (x,y) is the pixel coordinate using the image center
as the origin, and (A,B,C) are the background plane parameters specified as linear
coefficients.

OPTIONS


-d level
Turns on debugging to the specified level.

-n Indicates that no area images are present (assumes equal weighting for each data
pixel)

-s statusfile
mBackground output and errors will be written to statusfile instead of stdout.

-t Run in table mode. Starts a group of mBackground runs in parallel, reading off the
same pair of tables to determine which files and background corrections to work
with. Recommended for running only on grids or parallel processors.

ARGUMENTS


in.fits
Input FITS file

out.fits
Output FITS file

A B C Corrections (as given by mFitplane or mFitExec)

images.tbl
When run as part of a GRID processing job, mBackground requires the image metadata
table to retrieve the filenames of images.

corrections.tbl
When run as part of a GRID processing job, mBackground requires a table of
corrections (from mFitplane and mFitExec) to apply to the corresponding image (from
images.tbl).

RESULT


Output FITS image with background subtraction applied.

MESSAGES


OK [struct stat = "OK"]

ERROR No status file name given

ERROR Cannot open status file: statusfile

ERROR No debug level given

ERROR Debug level string is invalid: string

ERROR Debug level value cannot be negative

ERROR Invalid input file filename

ERROR Invalid output file filename

ERROR A coefficient string is not a number

ERROR B coefficient string is not a number

ERROR C coefficient string is not a number

ERROR Invalid image metadata file: images.tbl

ERROR Image table needs columns cntr and fname

ERROR Hit end of image table without finding file name

ERROR Need columns: id,a,b,c in corrections file

ERROR Hit end of corrections table without finding data

ERROR FITS library error message

ERROR general error message

EXAMPLES


The following is sample output from mFitplane for a FITS image, in.fits: [struct
stat="OK", a=-0.000144415, b=-0.000133642, c=-31.8984, crpix1=758.5, crpix2=-1032,
xmin=-758.5, xmax=-349.5, ymin=1032, ymax=1498, xcenter=-555.007, ycenter=1265.26,
rms=0.576727]

We use the plane coefficients calculated by mFitplane to subtract the background from the
image:

$ mBackground projdir/in.fits bg_removed/in.fits -0.000144415 -0.000133642 -31.8984
[struct stat="OK"]

Use mBackground online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    strace
    strace
    The strace project has been moved to
    https://strace.io. strace is a
    diagnostic, debugging and instructional
    userspace tracer for Linux. It is used
    to monitor a...
    Download strace
  • 2
    gMKVExtractGUI
    gMKVExtractGUI
    A GUI for mkvextract utility (part of
    MKVToolNix) which incorporates most (if
    not all) functionality of mkvextract and
    mkvinfo utilities. Written in C#NET 4.0,...
    Download gMKVExtractGUI
  • 3
    JasperReports Library
    JasperReports Library
    JasperReports Library is the
    world's most popular open source
    business intelligence and reporting
    engine. It is entirely written in Java
    and it is able to ...
    Download JasperReports Library
  • 4
    Frappe Books
    Frappe Books
    Frappe Books is a free and open source
    desktop book-keeping software that's
    simple and well-designed to be used by
    small businesses and freelancers. It'...
    Download Frappe Books
  • 5
    Numerical Python
    Numerical Python
    NEWS: NumPy 1.11.2 is the last release
    that will be made on sourceforge. Wheels
    for Windows, Mac, and Linux as well as
    archived source distributions can be fou...
    Download Numerical Python
  • 6
    CMU Sphinx
    CMU Sphinx
    CMUSphinx is a speaker-independent large
    vocabulary continuous speech recognizer
    released under BSD style license. It is
    also a collection of open source tools ...
    Download CMU Sphinx
  • 7
    Old Feren OS Repositories
    Old Feren OS Repositories
    This was the Official Repository for
    Feren OS. To add the latest one, run
    this command: (16.04-based) echo
    "deb ...
    Download Old Feren OS Repositories
  • More »

Linux commands

Ad