SCUBA2_REMOVE_BACKGROUND

Remove a background from SCUBA-2 images

Description:

Fit and remove a background from one or more SCUBA-2 images. This recipe will work best on simple images, such as those containing a single, compact source near the map centre.

Notes:

Available Parameters :

The following parameters can be set via the -recpars option:
MASK_SOURCE
Flag to denote whether to mask the source before removing the background. Default is 0 (do not mask the source).
APERTURE_RADIUS
Radius of aperture (in arcsec) used to mask out source. Default is about twice the beamsize.
BACKGROUND_FITMETHOD
Method to use for removing background. May be fitsurface, findback, plane or dc. Default is fitsurface.
FITSURFACE_FITTYPE
Type of fit to use with fitsurface. May be polynomial or spline. Default is polynomial.
FITSURFACE_FITPAR
Up to two values which define either the order of the polynomial (for polynomial) or the number of knots (for spline) in the X and Y directions respectively. A single number means the same value is used for both axes. Default is 2 for polynomial, 4 for spline.
FITSURFACE_KEEPSURFACE
A flag to denote whether or not to keep the fitted surface on disk. Useful for debugging purposes. Default is 0 (do not keep on disk).
FINDBACK_BOX
Size of the box (in pixels) used by findback. Default is 11.
Default values are those used if the parameter is not specified.

Display

None.
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