94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
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import cv2
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import sys
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(major_ver, minor_ver, subminor_ver) = (cv2.__version__).split('.')
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if __name__ == '__main__' :
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# Set up tracker.
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# Instead of MIL, you can also use
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tracker_types = ['BOOSTING', 'MIL','KCF', 'TLD', 'MEDIANFLOW', 'GOTURN', 'MOSSE', 'CSRT']
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tracker_type = tracker_types[2]
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if int(minor_ver) < 3:
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tracker = cv2.Tracker_create(tracker_type)
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else:
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if tracker_type == 'BOOSTING':
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tracker = cv2.TrackerBoosting_create()
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if tracker_type == 'MIL':
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tracker = cv2.TrackerMIL_create()
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if tracker_type == 'KCF':
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tracker = cv2.TrackerKCF_create()
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if tracker_type == 'TLD':
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tracker = cv2.TrackerTLD_create()
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if tracker_type == 'MEDIANFLOW':
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tracker = cv2.TrackerMedianFlow_create()
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if tracker_type == 'GOTURN':
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tracker = cv2.TrackerGOTURN_create()
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if tracker_type == 'MOSSE':
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tracker = cv2.TrackerMOSSE_create()
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if tracker_type == "CSRT":
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tracker = cv2.TrackerCSRT_create()
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# Read video
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video = cv2.VideoCapture("videos/chaplin.mp4")
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# Exit if video not opened.
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if not video.isOpened():
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print("Could not open video")
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sys.exit()
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# Read first frame.
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ok, frame = video.read()
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if not ok:
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print('Cannot read video file')
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sys.exit()
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# Define an initial bounding box
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bbox = (287, 23, 86, 320)
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# Uncomment the line below to select a different bounding box
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bbox = cv2.selectROI(frame, False)
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# Initialize tracker with first frame and bounding box
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ok = tracker.init(frame, bbox)
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while True:
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# Read a new frame
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ok, frame = video.read()
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if not ok:
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break
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# Start timer
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timer = cv2.getTickCount()
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# Update tracker
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ok, bbox = tracker.update(frame)
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# Calculate Frames per second (FPS)
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fps = cv2.getTickFrequency() / (cv2.getTickCount() - timer);
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# Draw bounding box
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if ok:
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# Tracking success
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p1 = (int(bbox[0]), int(bbox[1]))
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p2 = (int(bbox[0] + bbox[2]), int(bbox[1] + bbox[3]))
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cv2.rectangle(frame, p1, p2, (255,0,0), 2, 1)
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else :
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# Tracking failure
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cv2.putText(frame, "Tracking failure detected", (100,80), cv2.FONT_HERSHEY_SIMPLEX, 0.75,(0,0,255),2)
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# Display tracker type on frame
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cv2.putText(frame, tracker_type + " Tracker", (100,20), cv2.FONT_HERSHEY_SIMPLEX, 0.75, (50,170,50),2);
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# Display FPS on frame
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cv2.putText(frame, "FPS : " + str(int(fps)), (100,50), cv2.FONT_HERSHEY_SIMPLEX, 0.75, (50,170,50), 2);
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# Display result
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cv2.imshow("Tracking", frame)
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# Exit if ESC pressed
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k = cv2.waitKey(1) & 0xff
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if k == 27 : break
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