VideoCapture from camera works only in debug (Python)

asked 2019-10-24 01:28:54 -0600

FatalException gravatar image

updated 2019-10-24 01:50:16 -0600

I've started my project on Win7 Python3.6 OpenCV 4.1.1.26. The problem is: read() method of capture instance returns zeroes image array and True as retval. But! If i start Videocapture in debug mode - It's works fine! I can see grabbed images!

First of all, I was in doubt of my code. But I've checked example from opencv-python-tutroals. It's same behavior.

I use PyCharm community 2019.2. But checked out from console too:

  • python controller.py - blank screen
  • python -m pdb conftoller.py - works fine.

Does anyone faced with same issue? How to fix it?

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Comments

tutroals

please use opencv's own tutorials, as the tutroals are outdated and no more maintained.

berak gravatar imageberak ( 2019-10-24 01:32:33 -0600 )edit

Well, I don't see any difference. Ok, I did not find minimal example like in my link in link that you provided.

FatalException gravatar imageFatalException ( 2019-10-24 01:48:54 -0600 )edit

Does this help python -m pdb controller.py?

supra56 gravatar imagesupra56 ( 2019-10-24 08:13:48 -0600 )edit

Yea, exactly!

FatalException gravatar imageFatalException ( 2019-10-25 00:24:22 -0600 )edit
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