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deconvolver.makeprior - Function

3.1.2 Make the mem’s prior image, or make a mask
Description

Makes a prior image for the mem function. A general way to make a prior image is to start with a low resolution image, obtained from a smaller array configuration or a lower frequency observation, from another image which has been smoothed, or from a single dish image. The low resolution image can then be doctored via clipping and regioning to make it acceptable for the mem function.

Currently, only one Stokes parameter may be used at a time.

Arguments

Inputs

prior

output prior image

allowed:

string

Default:

templateimage

starting point for prior image

allowed:

string

Default:

lowclipfrom

Clip any pixel below this level

allowed:

any

Default:

variant 0.0Jy

lowclipto

Any clipped pixel will be given this value

allowed:

any

Default:

variant 0.0Jy

highclipfrom

Clip any pixel above this level

allowed:

any

Default:

variant 9e20Jy

highclipto

Any clipped pixel will be given this value

allowed:

any

Default:

variant 9e20Jy

blc

Bottom left hand corner for box; outside box is clipped

allowed:

intArray

Default:

-1

trc

Top right hand corner for box; outside box is clipped

allowed:

intArray

Default:

-1

async

Run asynchronously in the background?

allowed:

bool

Default:

false

Returns
bool

Example

deco.makeprior(prior=’3C283XC1.prior’, templateimage=’3C283XC1.mem.smooth’,  
clipfrom=’0.01Jy’, clipto=’0.0001Jy’, blc=[100,100], trc=[150,150])

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