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https://github.com/opencv/opencv_contrib.git
synced 2025-10-19 11:21:39 +08:00
48 lines
1.2 KiB
Python
48 lines
1.2 KiB
Python
import numpy as np
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import cv2
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import sys
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if len(sys.argv) != 2:
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print('Input video name is missing')
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exit()
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print('Select 3 tracking targets')
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cv2.namedWindow("tracking")
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camera = cv2.VideoCapture(sys.argv[1])
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tracker = cv2.MultiTracker_create()
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init_once = False
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ok, image=camera.read()
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if not ok:
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print('Failed to read video')
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exit()
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bbox1 = cv2.selectROI('tracking', image)
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bbox2 = cv2.selectROI('tracking', image)
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bbox3 = cv2.selectROI('tracking', image)
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while camera.isOpened():
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ok, image=camera.read()
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if not ok:
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print 'no image to read'
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break
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if not init_once:
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ok = tracker.add(cv2.TrackerMIL_create(), image, bbox1)
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ok = tracker.add(cv2.TrackerMIL_create(), image, bbox2)
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ok = tracker.add(cv2.TrackerMIL_create(), image, bbox3)
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init_once = True
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ok, boxes = tracker.update(image)
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print ok, boxes
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for newbox in boxes:
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p1 = (int(newbox[0]), int(newbox[1]))
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p2 = (int(newbox[0] + newbox[2]), int(newbox[1] + newbox[3]))
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cv2.rectangle(image, p1, p2, (200,0,0))
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cv2.imshow('tracking', image)
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k = cv2.waitKey(1)
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if k == 27 : break # esc pressed
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