--- a/scripts/display-trajectories.py	Thu Jun 22 12:02:34 2017 -0400
+++ b/scripts/display-trajectories.py	Thu Jun 22 16:57:34 2017 -0400
@@ -9,8 +9,8 @@
 
 parser = argparse.ArgumentParser(description='The program displays feature or object trajectories overlaid over the video frames.', epilog = 'Either the configuration filename or the other parameters (at least video and database filenames) need to be provided.')
 parser.add_argument('--cfg', dest = 'configFilename', help = 'name of the configuration file')
-parser.add_argument('-d', dest = 'databaseFilename', help = 'name of the Sqlite database file')
-parser.add_argument('-i', dest = 'videoFilename', help = 'name of the video file')
+parser.add_argument('-d', dest = 'databaseFilename', help = 'name of the Sqlite database file (overrides the configuration file)')
+parser.add_argument('-i', dest = 'videoFilename', help = 'name of the video file (overrides the configuration file)')
 parser.add_argument('-t', dest = 'trajectoryType', help = 'type of trajectories to display', choices = ['feature', 'object'], default = 'feature')
 parser.add_argument('-o', dest = 'homographyFilename', help = 'name of the image to world homography file')
 parser.add_argument('--intrinsic', dest = 'intrinsicCameraMatrixFilename', help = 'name of the intrinsic camera file')