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You are here: NRAO Public Wiki>ALMA Web>TWikiUsers>ToddHunter>CasaExtensions>ImageSnr (2015-01-22, ToddHunter)
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imageSnr
Return to directory of Todd's CASA extensions Measures the ratio of the peak to standard deviation of a CASA image. See also imageSnrs.Usage:
au.imageSnr(img, blc=None, trc=None, applymask=False)Inputs:
- img: CASA image
- blc: integer tuple for the bottom left corner of the rectangle in which to measure the rms
- trc: integer tubple for the top right corner of the rectangle in which to measure the rms
- applymask: if True, then don't consider the values of masked pixels
Example:
CASA <3>: au.imageSnr('Juno0.ms.cal.R1.image')
Out[3]: 30.152874766835232
-- ToddHunter - 2014-10-23 Edit | Attach | Print version | History: r2 < r1 | Backlinks | View wiki text | Edit wiki text | More topic actions
Topic revision: r2 - 2015-01-22, ToddHunter
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