imageStd

Return to directory of Todd's CASA extensions

Returns the standard deviation of pixel values of a CASA image. See also imageStds.

Usage:

au.imageStd(img, innerRadius=None, outerRadius=None, blc=None, trc=None, applymask=False)
Inputs:
  • blc: integer tuple describing the bottom left corner of the region in which to compute the standard deviation
  • trc: integer tuple describing the bottom left corner of the region in which to compute the standard deviation
  • innerRadius: of square annulus in pixel units (not yet working)
  • outerRadius: of square annulus in pixel units (not yet working)
  • applymask: if True, then don't consider the values of masked pixels

Example:

CASA <14>: au.imageStd('Juno0.ms.cal.R1.image',blc=[375,550],trc=[625,650])
  Out[14]: 0.00023071091507802376

-- ToddHunter - 2014-10-23
Topic revision: r2 - 2015-01-22, ToddHunter
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