How can I use OpenCV for object tracking?

How can I use OpenCV for object tracking?

You can use OpenCV's built-in tracking algorithms like KCF, CSRT, or MOSSE. Which one are you interested in?

What's the difference between KCF and CSRT?

KCF is faster and works well for objects with consistent appearance, while CSRT is more accurate for objects that change shape.

Can you show me a code example for KCF tracking?

Sure! Here's a simple example:

import cv2

cap = cv2.VideoCapture(0)

# Read the first frame
ret, frame = cap.read()

# Define the initial bounding box
bbox = (x, y, width, height)

# Create KCF tracker
tracker = cv2.TrackerKCF_create()
tracker.init(frame, bbox)

while True:
    ret, frame = cap.read()
    success, bbox = tracker.update(frame)
    if success:
        (x, y, w, h) = [int(v) for v in bbox]
        cv2.rectangle(frame, (x, y), (x + w, y + h), (255, 0, 0), 2)
    cv2.imshow('Tracking', frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
cap.release()
cv2.destroyAllWindows()

What if the object is occluded?

In cases of occlusion, you might want to switch to a more robust tracker like CSRT or implement a re-detection strategy.