title: Use OpenCVContrib in iOS Project Xcode 7.3
body: <p>I am trying to use the facerecognizer library of OpenCV in a project in Xcode 7.3. I downloaded OpenCV and installed it using CocoaPods (Version 3.0.0), and that is working fine. I try to import <code>#include "opencv2/contrib/contrib.hpp"</code> and it throws an error saying file not found.</p>
  
  <p>I looked online and apparently the contrib library is not included with OpenCV anymore. I tried to build the OpenCV_contrib framework by cloning it from github and running the python build script, but got an error. Does anyone know of a way that I can get the contrib.hpp files and the facrecognizer library into my project so that I can use it? </p>
  
  <p>Thanks</p>