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Version 1.9 Build 1488

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deconvolver.clipimage - Function

	Package	general
	Module	deconvolver
	Tool	deconvolver

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

Returns
Bool

Example

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