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imagepol.sigma - Function

1.1.4 Find best guess at thermal noise


Description

This function returns the standard deviation from V, Q&U or I in that order of precedence. It is attempting to give you the best estimate of the thermal noise it can from the data. Outliers from the mean are clipped at the specified level.

Arguments

Inputs

clip

Clip level for auto-sigma determination

allowed:

double

Default:

10.0

Returns
double

Example

 
 
"""  
#  
print "\t----\t sigma Ex 1 \t----"  
po.open(’stokes.image’)  
sigma = po.sigma()  
print "sigma=", sigma  
#  
"""  
 

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