message: fix timing of traincascade
diff: @@ -139,7 +139,7 @@ bool CvCascadeClassifier::train( const string _cascadeDirName,
  double acceptanceRatioBreakValue )
  {
  // Start recording clock ticks for training time output
  - const clock_t begin_time = clock();
  + double time = (double)getTickCount();
  if( _cascadeDirName.empty() || _posFilename.empty() || _negFilename.empty() )
  CV_Error( CV_StsBadArg, "_cascadeDirName or _bgfileName or _vecFileName is NULL" );
  @@ -267,7 +267,7 @@ bool CvCascadeClassifier::train( const string _cascadeDirName,
  fs << "}";
  // Output training time up till now
  - float seconds = float( clock () - begin_time ) / CLOCKS_PER_SEC;
  + double seconds = ( (double)getTickCount() - time)/ getTickFrequency();
  int days = int(seconds) / 60 / 60 / 24;
  int hours = (int(seconds) / 60 / 60) % 24;
  int minutes = (int(seconds) / 60) % 60;
  