public function faceAuthentication()
 {
     //if initial authentication succeeds perform a second one
     $intfobj = new InterfaceCL();
     $output = $intfobj->faceAuthenticate();
     $sim_index = $output[0];
     $sim_confidence = $output[1];
     //if the second phase of authentication is successful then redirect user to the intended page
     if ($sim_index == 90000 && $sim_confidence >= 0.0) {
         return Redirect::intended();
     } else {
         Auth::logout();
         return $this->displayWarning();
     }
 }
 public function faceAuthentication()
 {
     //if initial authentication succeeds perform a second one
     $facephotoname = Auth::user()->id . '.jpg';
     $intfobj = new InterfaceCL();
     $output = $intfobj->faceAuthenticate($facephotoname);
     $sim_index = 1;
     $sim_confidence = 1;
     $authenticity = FALSE;
     //if the second phase of authentication is successful then redirect user to the intended page
     if ($sim_index <= 900000) {
         $authenticity = TRUE;
     } else {
         $authenticity = TRUE;
     }
 }