--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/display-trajectories.py	Fri Dec 05 12:13:53 2014 -0500
@@ -0,0 +1,67 @@
+#! /usr/bin/env python
+
+import sys, argparse
+
+import storage, cvutils, utils
+
+from numpy.linalg.linalg import inv
+from numpy import loadtxt
+
+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('-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')
+parser.add_argument('--distortion-coefficients', dest = 'distortionCoefficients', help = 'distortion coefficients', nargs = '*', type = float)
+parser.add_argument('--undistorted-multiplication', dest = 'undistortedImageMultiplication', help = 'undistorted image multiplication', type = float)
+parser.add_argument('-u', dest = 'undistort', help = 'undistort the video (because features have been extracted that way)', action = 'store_true')
+parser.add_argument('-f', dest = 'firstFrameNum', help = 'number of first frame number to display', type = int)
+parser.add_argument('-r', dest = 'rescale', help = 'rescaling factor for the displayed image', default = 1., type = float)
+parser.add_argument('-s', dest = 'nFramesStep', help = 'number of frames between each display', default = 1, type = int)
+parser.add_argument('--save-images', dest = 'saveAllImages', help = 'save all images', action = 'store_true')
+parser.add_argument('--last-frame', dest = 'lastFrameNum', help = 'number of last frame number to save (for image saving, no display is made)', type = int)
+
+args = parser.parse_args()
+
+if args.configFilename: # consider there is a configuration file
+    params = storage.ProcessParameters(args.configFilename)
+    videoFilename = params.videoFilename
+    databaseFilename = params.databaseFilename
+    if params.homography != None:
+        homography = inv(params.homography)
+    else:
+        homography = None
+    intrinsicCameraMatrix = params.intrinsicCameraMatrix
+    distortionCoefficients = params.distortionCoefficients
+    undistortedImageMultiplication = params.undistortedImageMultiplication
+    undistort = params.undistort
+    firstFrameNum = params.firstFrameNum
+else:
+    homography = None
+    undistort = False
+    intrinsicCameraMatrix = None
+    distortionCoefficients = []
+    undistortedImageMultiplication = None
+    firstFrameNum = 0
+
+if not args.configFilename and args.videoFilename != None:
+    videoFilename = args.videoFilename
+if not args.configFilename and args.databaseFilename != None:
+    databaseFilename = args.databaseFilename
+if not args.configFilename and args.homographyFilename != None:
+    homography = inv(loadtxt(args.homographyFilename))            
+if not args.configFilename and args.intrinsicCameraMatrixFilename != None:
+    intrinsicCameraMatrix = loadtxt(args.intrinsicCameraMatrixFilename)
+if not args.configFilename and args.distortionCoefficients != None:
+    distortionCoefficients = args.distortionCoefficients
+if not args.configFilename and args.undistortedImageMultiplication != None:
+    undistortedImageMultiplication = args.undistortedImageMultiplication
+if args.firstFrameNum != None:
+    firstFrameNum = args.firstFrameNum
+
+
+objects = storage.loadTrajectoriesFromSqlite(databaseFilename, args.trajectoryType)
+boundingBoxes = storage.loadBoundingBoxTableForDisplay(databaseFilename)
+cvutils.displayTrajectories(videoFilename, objects, boundingBoxes, homography, firstFrameNum, args.lastFrameNum, rescale = args.rescale, nFramesStep = args.nFramesStep, saveAllImages = args.saveAllImages, undistort = (undistort or args.undistort), intrinsicCameraMatrix = intrinsicCameraMatrix, distortionCoefficients = distortionCoefficients, undistortedImageMultiplication = undistortedImageMultiplication)