feather – Combine two images using their Fourier transforms – imaging task

Description

The algorithm converts each image to the gridded visibility plane, combines them, and reconverts them into an combined image. Each image must include a well-defined beam shape (clean beam) in order for feathering to work well. The two images must have the same flux density normalization scale.

Parameters

Title
Parameter	Default	Description
imagename	`''`
highres	`''`
lowres	`''`
sdfactor	`float(1.0)`
effdishdiam	`float(-1.0)`
lowpassfiltersd	`False`

Parameter Explanations

imagename

''

Name of output feathered image

highres

''

Name of high resolution (interferometer) image

lowres

''

Name of low resolution (single dish) image

sdfactor

float(1.0)

Scale factor to apply to Single Dish image

effdishdiam

float(-1.0)

New effective SingleDish diameter to use in m

lowpassfiltersd

False

Filter out the high spatial frequencies of the SD image