makeThresholdMask

lsst.ip.isr.makeThresholdMask(maskedImage, threshold, growFootprints=1, maskName='SAT')

Mask pixels based on threshold detection.

Parameters:
maskedImage : lsst.afw.image.MaskedImage

Image to process. Only the mask plane is updated.

threshold : scalar

Detection threshold.

growFootprints : scalar, optional

Number of pixels to grow footprints of detected regions.

maskName : str, optional

Mask plane name, or list of names to convert

Returns:
defectList : lsst.meas.algorithms.Defects

Defect list constructed from pixels above the threshold.