Posts by Luiz Antonio R. G. • 1 point

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  Q: python: cv2.error "NULL window Handler" in linux Mint

  I’m running a script to learn how to use trackBar in Opencv within Linux Mint. The problem is that sometimes I run and it works normally, sometimes it gives a "Null window Handler" error and other…

  python-3.x opencv

  asked 3 years, 3 months ago Luiz Antonio R. G. 1