title: Face Recognition in OpenCV
body: <p>I was trying to build a basic Face Recognition system (PCA-Eigenfaces) using OpenCV 2.2 (from Willow Garage). I understand from many of the previous posts on Face Recognition that there is no standard open source library that can provide all the face recognition for you.</p>
  
  <p>Instead, I would like to know if someone has used the functions(and integrated them):</p>
  
  <pre><code>icvCalcCovarMatrixEx_8u32fR
  icvCalcEigenObjects_8u32fR
  icvEigenProjection_8u32fR
  </code></pre>
  
  <p>et.al in the <code>eigenobjects.cpp</code> to form a face recognition system, because the functions seem to provide much of the required functionality along with <code>cvSvd</code>?</p>
  
  <p>I am having a tough time trying to understand to do so since I am new to OpenCV.</p>