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<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> Various ways to normalize a (multidimensional) image.

 X may have arbitrary dimension (ie an image or video, etc).  X is treated
 as a vector of pixel values.  Hence, the mean of X is the average pixel
 value, and likewise the standard deviation is the std of the pixels from
 the mean pixel.

 USAGE
  X = imNormalize( X, flag )

 INPUTS
  X   