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linearmosaic.saultweightimage - Function

3.1.3 Use this function to create a Sault-weighted image


Description

”Sault weighted” image is one which is more pleasant to view (without high noise at the edges of mosaic images), it is flux correct upto a where the beam coverage becomes low and is tapered off onwards just to keep the noise from rising in the overall image(see Eq[2] from Sault, Staveley-Smith and Brouw (1996), Astron. Astrophys. Suppl, 120, 375)

Arguments





Inputs

outputimage

Name of image to create the Sault-Weighted image

allowed:

string

Default:

fracpeak

Upto what fraction of peak of coverage should the image be flux correct

allowed:

double

Default:

0.1

Returns
bool

Example

 
 
 lm.defineoutputimage(nx=3000, cellx=’3arcsec’, imagecenter=’19h13m13.469 4d50m09.649’, outputimage=’test.linmos’)  
lm.makemosaic(images=[’FIELD_31/img.image’, ’FIELD_33/img.image’], weightimages=[’FIELD_31/img.pb’, ’FIELD_33/img.pb’])  
###the above will make a flux correct mosaic of the 2 images in a flux correct fashion in test.linmos  
#Now make a Sault weighted image to use in the viewer  
lm.saultweightimage(’test_sault.linmos’)  
 

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