NRAO Home > CASA > CASA Toolkit Reference Manual

3.1.3 linearmosaic - Tool

combining images in a weighted fashion



The linearmosaic tool (lm) provides a toolkit for stitching images in a weighted fashion.

The default linear mosaic equation is defined by Equation (6) in Cornwell, Holdaway et al (Astronomy and Astrophysics, Vol. 271, p. 697 (1993)).

 lm     --p-Ap(θ)(Ip(θ)Ap(θ))wp
I  (θ) =     ∑p  A2p(θ)wp

where Ap(θ) is the primary beam (PB) of a given pointing p, wp is a sensitivity weight and the image of that pointing is Ip(θ); the linear mosaic being Ilm(θ)


??Construct a linearmosaic tool
??Set the output direction image parameters and name
??Use this function to mosaic on an existing image and weight image
??Use this function to create a Sault-weighted image
??Use this function to set if you want to mosaic in flatnoise domain
??mosaic images in a weighted fashion onto ouput image

    linearmosaic.linearmosaic - Function
    linearmosaic.defineoutputimage - Function
    linearmosaic.setoutputimage - Function
    linearmosaic.saultweightimage - Function
    linearmosaic.setlinmostype - Function
    linearmosaic.makemosaic - Function

More information about CASA may be found at the CASA web page

Copyright 2016 Associated Universities Inc., Washington, D.C.

This code is available under the terms of the GNU General Public Lincense

Home | Contact Us | Directories | Site Map | Help | Privacy Policy | Search