[Insight-developers] Renaming classes

[Andinet Enquobahrie]

Gaetan,

I would like to propose renaming the following projection filters that 
were recently added to the
Review directory from the Insight Journal contribution. The purpose is 
to clarify their functionality

1) itkSigmaProjectionImageFilter -> 
itkStandardDeviationProjectionImageFilter

Standard deviation is a more generic term than Sigma.  Sigma represents 
typically standard deviation for
a Gaussian distribution.

2) itkBinaryProjectionImageFilter

This filter basically searches for a pixel with value equal to the 
foreground value along the
projection direction and set the corresponding output pixel to 
foreground or background
value accordingly. The term "Binary" does not express this notion. 
Possible names that
come to mind are

itkFindProjectionImageFilter
itkFindValueProjectionImageFilter

Furthermore, I am planning to add a

 itkBinaryThresholdProjectionImageFilter

which basically searchs for a pixel with intensity value greater than a 
threshold value along the projection
direction.

Let me know if you have any suggestions.

-Andinet