National Radio
Astronomy Observatory

imager.clipimage - Function

2.3.1 Zero all pixels where Stokes I is below a 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

Example

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