imutil.ccdops.propagate_ccdmask

imutil.ccdops.propagate_ccdmask(ccd, additional_mask=None)

Propagate the ~astropy.nddata.CCDData’s mask and additional mask.

Parameters

ccd : ~astropy.nddata.CCDData, ~numpy.ndarray

The ccd to extract mask. If ~numpy.ndarray, it will only return a copy of additional_mask.

additional_mask : mask-like, None, optional. = None

The mask to be propagated. Default: None.

Notes

The original ccd.mask is not modified. To do so,

ccd.mask = propagate_ccdmask(ccd, additional_mask=mask2)