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LSST Data Management Base Package
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Classes | Functions
lsst.meas.algorithms.dynamicDetection Namespace Reference

Classes

class  DynamicDetectionConfig
 
class  DynamicDetectionTask
 

Functions

 countMaskedPixels (maskedIm, maskPlane)
 

Function Documentation

◆ countMaskedPixels()

lsst.meas.algorithms.dynamicDetection.countMaskedPixels ( maskedIm,
maskPlane )
Count the number of pixels in a given mask plane.

Parameters
----------
maskedIm : `lsst.afw.image.MaskedImage`
    Masked image to examine.
maskPlane : `str`
    Name of the mask plane to examine.

Returns
-------
nPixMasked : `int`
    Number of pixels with ``maskPlane`` bit set.

Definition at line 491 of file dynamicDetection.py.

491def countMaskedPixels(maskedIm, maskPlane):
492 """Count the number of pixels in a given mask plane.
493
494 Parameters
495 ----------
496 maskedIm : `lsst.afw.image.MaskedImage`
497 Masked image to examine.
498 maskPlane : `str`
499 Name of the mask plane to examine.
500
501 Returns
502 -------
503 nPixMasked : `int`
504 Number of pixels with ``maskPlane`` bit set.
505 """
506 maskBit = maskedIm.mask.getPlaneBitMask(maskPlane)
507 nPixMasked = np.sum(np.bitwise_and(maskedIm.mask.array, maskBit))/maskBit
508 return nPixMasked