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multiple_tracking.py
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multiple_tracking.py
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import cv2
import sys
from random import randint
tracker_types = ['BOOSTING', 'MIL', 'KCF', 'TLD', 'MEDIANFLOW', 'MOSSE', 'CSRT']
def create_tracker_by_name(tracker_type):
if tracker_type == tracker_types[0]:
tracker = cv2.legacy.TrackerBoosting_create()
elif tracker_type == tracker_types[1]:
tracker = cv2.legacy.TrackerMIL_create()
elif tracker_type == tracker_types[2]:
tracker = cv2.legacy.TrackerKCF_create()
elif tracker_type == tracker_types[3]:
tracker = cv2.legacy.TrackerTLD_create()
elif tracker_type == tracker_types[4]:
tracker = cv2.legacy.TrackerMedianFlow_create()
elif tracker_type == tracker_types[5]:
tracker = cv2.legacy.TrackerMOSSE_create()
elif tracker_type == tracker_types[6]:
tracker = cv2.legacy.TrackerCSRT_create()
else:
tracker = None
print('Invalid name! Available trackers: ')
for t in tracker_types:
print(t)
return tracker
#print(create_tracker_by_name('CSRT'))
#print(create_tracker_by_name('CSRT8'))
video = cv2.VideoCapture('Videos/race.mp4')
if not video.isOpened():
print('Error while loading the video!')
sys.exit()
ok, frame = video.read()
bboxes = []
colors = []
while True:
bbox = cv2.selectROI('MultiTracker', frame)
bboxes.append(bbox)
colors.append((randint(0,255), randint(0,255), randint(0,255)))
print('Press Q to quit and start tracking')
print('Press any other key to select the next object')
k = cv2.waitKey(0) & 0XFF
if k == 113: # Q - quit
break
print(bboxes)
print(colors)
tracker_type = 'CSRT'
multi_tracker = cv2.legacy.MultiTracker_create()
for bbox in bboxes:
multi_tracker.add(create_tracker_by_name(tracker_type), frame, bbox)
while video.isOpened():
ok, frame = video.read()
if not ok:
break
ok, boxes = multi_tracker.update(frame)
for i, new_box in enumerate(boxes):
(x, y, w, h) = [int(v) for v in new_box]
cv2.rectangle(frame, (x, y), (x + w, y + h), colors[i], 2)
cv2.imshow('MultiTracker', frame)
if cv2.waitKey(1) & 0XFF == 27: # esc
break