/**
 \defgroup ITKImageFrequency Module ITKImageFrequency 
 This module contains classes to iterate over images in the frequency domain,
and filters to apply band pass filters based on frequency.

A more detailed description can be found in the Insight Journal article::

Cerdan, P.H. "ITK Wavelet Module".
  https://www.insight-journal.org/browse/publication/986
  September, 2016.
 
 \par Dependencies:
 \li \ref ITKCommon 
 \dot 
 graph "ITKImageFrequency" { 
 "ITKImageFrequency" -- "ITKCommon"; 
 } 
 \enddot 
 */