title: PCA recognition OpenCV 2.3
body: <p>I have a problem with opencv2.3 and android 2.2: I have a set of 10 image where i take the face and with the functin PCACompute and PCAProjet, i compute the subspace of PCA and projet the image into this subspace.<br>
  So, i have the Mat with eigenvectors, the Mat with mean value and the Mat result.<br>
  My question is: how i can perform the face recognition with a new image? What data i must compare? Eigenvalues, eigenvectors?<br>
  I hope that someone can help me.<br>
  Thanks in advance.<br>
  Marco</p>