Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/FLE|PARAMETERS">PARAMETERS</a><hr>
<H4>NOISEVAR</H4>
Specifies the noise variance for the image channel.
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<PRE>
 EASI&gt;NOISEVAR=i
</PRE>
This parameter specifies the noise variance of the image. The user
can measure this value on the image by selecting a flat area on the
image and run HIS program to calculate the standard deviation of the
area. NOISEVAR is equal to the square of the standard deviation of
the flat area. For multiplicative noise, if the user does not know
of any flat area on the image, the noise variance can be estimated
from the number of looks of the image. See the NLOOK parameter for
details. If both NOISEVAR and NLOOK are not specified, NOISEVAR is
defaulted to zero.
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Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/FLE|PARAMETERS">PARAMETERS</a><br>
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