imager.clipimage - Function

Zero all pixels where Stokes I is below a threshold

Synopsis clipimage(image, threshold)

Description All pixels in the image with Stokes I less than some threshold are set to zero. This is useful prior to self-calibration where one oftens wishes to remove negative pixels from the model. Note that if the image has polarization information, then the polarized part of a pixel is also set to zero if Stokes I is less than the threshold.

Arguments

`image`	`in`	name of image
		`Allowed:`	`String`
`threshold`	`in`	Threshold
		`Allowed:`	`Quantity`
		`Default:`	`'0Jy'`

Returns Bool

Example

imgr.clipimage(image='clean', threshold='50mJy')
%imgr.selfcal(cal='mycal', model='clean');

Next: imager.clipvis - Function Up: imager - Tool Previous: imager.clean - Function Contents Index

	`Package`	`synthesis`
	`Module`	`imager`
	`Tool`	`imager`