--- a/c/Parameters.cpp	Tue Aug 23 19:04:41 2011 -0400
+++ b/c/Parameters.cpp	Wed Aug 24 01:34:27 2011 -0400
@@ -15,6 +15,7 @@
 
   // configuration filename
   onlyCmdLine.add_options()
+    ("help,h", "displays this help message")
     ("config-file", po::value<string>(&configurationFilename)->default_value("tracking.cfg"), "configuration file")
     ;
 
@@ -23,7 +24,6 @@
   
   // common to cnnfiguration and command line
   cmdLineAndFile.add_options()
-    ("help,h", "displays this help message")
     ("video-filename", po::value<string>(&videoFilename), "filename of the video to process")
     ("database-filename", po::value<string>(&databaseFilename), "filename of the database where results are saved")
     ("homography-filename", po::value<string>(&homographyFilename), "filename of the homography matrix")
@@ -45,7 +45,7 @@
     ("min-feature-displacement", po::value<float>(&minFeatureDisplacement), "minimum displacement to keep features")
     ("acceleration-bound", po::value<float>(&accelerationBound), "maximum feature acceleration")
     ("deviation-bound", po::value<float>(&deviationBound), "maximum feature deviation")
-    ("nframes-smoothing", po::value<int>(&nFramesSmoothing), "number of frames to smooth positions (half window)")
+    ("smoothing-halfwidth", po::value<int>(&nFramesSmoothing), "number of frames to smooth positions (half window)")
     ("max-number-iterations", po::value<int>(&maxNumberTrackingIterations), "maximum number of iterations to stop feature tracking")
     ("min-tracking-error", po::value<float>(&minTrackingError), "minimum error to reach to stop feature tracking")
     ("min-feature-time", po::value<unsigned int>(&minFeatureTime), "minimum length of a feature (number of frames) to consider a feature for grouping")
@@ -67,6 +67,14 @@
 	  options(cmdLine).positional(p).allow_unregistered().run(), vm);
     notify(vm);
 
+    cout << "Using configuration file " << configurationFilename << endl;
+
+    ifstream configurationFile(configurationFilename.c_str());
+    store(po::parse_config_file(configurationFile, cmdLineAndFile), vm);
+    notify(vm);
+
+    parameterDescription = getParameterDescription(cmdLineAndFile, vm);
+
     if (vm.count("help")) {
       cout << cmdLine << endl;
       // cout << "Positional options:";
@@ -75,13 +83,6 @@
       // cout << endl;
       exit(0);
     }
-    cout << "Using configuration file " << configurationFilename << endl;
-    
-    ifstream configurationFile(configurationFilename.c_str());
-    store(po::parse_config_file(configurationFile, cmdLineAndFile), vm);
-    notify(vm);
-
-    parameterDescription = getParameterDescription(cmdLine, vm);
   } catch(exception& e) {
     cout << e.what() << endl;
   }
@@ -103,7 +104,7 @@
     else if (value.type() == typeid(string))
       stream << boost::any_cast<string>(value) << separator;
     else
-      cerr << "the type of the option variable " << i << " is not int, float or string." << endl;
+      cerr << "the type of the option " << optionsVec[i]->long_name() << " (" << i << ") is not int, float or string." << endl;
   }
 
   return stream.str();

--- a/c/feature-based-tracking.cpp	Tue Aug 23 19:04:41 2011 -0400
+++ b/c/feature-based-tracking.cpp	Wed Aug 24 01:34:27 2011 -0400
@@ -133,7 +133,7 @@
     
   int key = '?';
   unsigned int savedFeatureId=0;
-  for (int frameNum = params.frame1; ((params.frame1+frameNum < params.nFrames) || (params.nFrames < 0)) && !::interruptionKey(key); frameNum++) {
+  for (int frameNum = params.frame1; ((frameNum-params.frame1 < params.nFrames) || (params.nFrames < 0)) && !::interruptionKey(key); frameNum++) {
       capture >> frame;
       cout << frameNum << " " << capture.get(CV_CAP_PROP_POS_FRAMES) << " " << prevPts.size() << endl;
       while (frame.empty())

--- a/tracking.cfg	Tue Aug 23 19:04:41 2011 -0400
+++ b/tracking.cfg	Wed Aug 24 01:34:27 2011 -0400
@@ -42,7 +42,7 @@
 # maximum feature deviation
 deviation-bound = 0.6
 # number of frames to smooth positions (half window)
-nframes-smoothing = 5
+smoothing-halfwidth = 5
 # number of frames to compute velocities
 #nframes-velocity = 5
 # maximum number of iterations to stop feature tracking