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annotate scripts/display-trajectories.py @ 385:1917db662aa7

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added rescaling options to scripts play-video and display-trajectories
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Mon, 22 Jul 2013 18:33:47 -0400
parents a50a69e04c2a
children eaf7765221d9
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1 #! /usr/bin/env python
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3 import sys, argparse
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5 import storage, cvutils, utils
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7 from numpy.linalg.linalg import inv
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8 from numpy import loadtxt
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10 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.')
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11 parser.add_argument('--cfg', dest = 'configFilename', help = 'name of the configuration file')
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12 parser.add_argument('-d', dest = 'databaseFilename', help = 'name of the Sqlite database file')
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13 parser.add_argument('-i', dest = 'videoFilename', help = 'name of the video file')
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14 parser.add_argument('-t', dest = 'trajectoryType', help = 'type of trajectories to display', choices = ['feature', 'object'], default = 'feature')
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15 parser.add_argument('-o', dest = 'homography', help = 'name of the image to world homography')
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16 parser.add_argument('-f', dest = 'firstFrameNum', help = 'number of first frame number to display', default = 0, type = int)
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17 parser.add_argument('-r', dest = 'rescale', help = 'rescaling factor for the displayed image', default = 1., type = float)
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19 args = parser.parse_args()
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21 homography = None
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22 if args.configFilename: # consider there is a configuration file
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23 params = utils.TrackingParameters()
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24 params.loadConfigFile(args.configFilename)
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25 videoFilename = params.videoFilename
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26 databaseFilename = params.databaseFilename
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27 homography = inv(params.homography)
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28 firstFrameNum = params.firstFrameNum
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30 if args.videoFilename != None:
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31 videoFilename = args.videoFilename
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32 if args.databaseFilename != None:
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33 databaseFilename = args.databaseFilename
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34 if args.homography != None:
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35 homography = inv(loadtxt(args.homography))
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36 if args.firstFrameNum != None:
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37 firstFrameNum = args.firstFrameNum
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39 objects = storage.loadTrajectoriesFromSqlite(databaseFilename, args.trajectoryType)
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40 cvutils.displayTrajectories(videoFilename, objects, homography, firstFrameNum, rescale = args.rescale)