OpenCV, How to pass parameters into cv2.TrackerMedianFlow_create function?

Question

I\'m trying to create MEDIANFLOW tracker with OpenCV3.3 using opencv-python with Python3.6. I need to pass some arguments into the constructor according to this page of OpenCV d

Answer 1

You can customize Tracker parameters via FileStorage interface.

import cv2

# write
tracker = cv2.TrackerMedianFlow_create()
tracker.save('params.json')

# write (another way)
fs = cv2.FileStorage("params.json", cv2.FileStorage_WRITE)
tracker.write(fs)
fs.release()

# read
tracker2 = cv2.TrackerMedianFlow_create()
fs = cv2.FileStorage("params.json", cv2.FileStorage_READ)
tracker2.read(fs.getFirstTopLevelNode())