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imagepol.fraclinpol - Function

1.1.4 Fractional linear polarization


Description

This function returns the fractional linear polarization; ∘ ---------
  (Q2 + U 2)∕I.

You may optionally debias the polarized intensity. This requires the standard deviation of the thermal noise. You can either supply it if you know it, or it will be worked out for you with outliers from the mean clipped at the specified level.

Arguments





Inputs

debias

Debias the linearly polarized intensity ?

allowed:

bool

Default:

false

clip

Clip level for auto-sigma determination

allowed:

double

Default:

10.0

sigma

Standard deviation of thermal noise. Default is auto determined.

allowed:

double

Default:

-1

outfile

Output image file name Default is unset.

allowed:

string

Default:

Returns
image

Example

 
 
"""  
#  
print "\t----\t fraclinpol Ex 1 \t----"  
po.open(’stokes.image’)  
flp = po.fraclinpol()  
flp.summary()  
flp.done()  
#  
"""  
 

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