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Tracking.py
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Tracking.py
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# this code is for selecting a region of interest (ROI) and then tracking it
#********************************************************************************************
# Import libraries
import cv2
from matplotlib.pyplot import draw
from matplotlib.transforms import Bbox
#********************************************************************************************
# write functions here
def DrawBox(frame, Bbox):
x, y, w, h = int(Bbox[0]), int(Bbox[1]), int(Bbox[2]), int(Bbox[3])
cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 2)
cv2.putText(frame, "Tracking", (10, 40), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 255, 0), 2)
#********************************************************************************************
def main():
#************************************************************************************
# Write code here
#CSRT, KCF, MIL, MOSSE, TLD
#tracker = cv2.legacy.TrackerMOSSE_create()
tracker = cv2.TrackerCSRT_create()
_, frame = cap.read()
Bbox = cv2.selectROI("Tracking", frame, False)
tracker.init(frame, Bbox)
#************************************************************************************
while True:
# fps
timer = cv2.getTickCount()
# Read image
_, frame = cap.read()
#************************************************************************************
# Write code here
success, Bbox = tracker.update(frame)
if success:
DrawBox(frame, Bbox)
else:
cv2.putText(frame, "Tracking lost", (10, 40), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 255), 2)
#************************************************************************************
# fps
fps = cv2.getTickFrequency() / (cv2.getTickCount() - timer)
# Write fps on frame
cv2.putText(frame, "FPS: {:d}".format(int(fps)), (10, 20), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 0), 2)
# Display image
cv2. imshow('Tracking' , frame)
if cv2.waitKey(10) & 0xFF == ord("q"):
break
cap.release()
cv2.destroyAllWindows()
#********************************************************************************************
# Run main function
if __name__ == '__main__':
cap = cv2. VideoCapture(0, cv2.CAP_DSHOW)
main()