opencv / opencv/opencv-python

Picture overlap error

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#982 2 comments 0 reactions 0 assignees View on GitHub

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question
Dominant language
Python
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Description

Expected behaviour

Use opencv to do picture output, hope it can be stable output for a long time

Actual behaviour

I am now using opencv to output images, and I find that after running for some days, the output images are not very stable. On a same screen, the previous picture shows a part, the last picture shows a part.I use code cv.imshow cv.waitKey

Steps to reproduce
  • cv.imshow cv.waitKey
  • ubuntu20
  • e.g. x86
  • opencv-python 4.x

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the long-running behavior with cv.imshow and cv.waitKey on Ubuntu 20, x86, using opencv-python 4.x. Compare successive output images on the same screen and document whether parts of previous frames remain visible. Done means the output remains stable over multiple days, or the issue is narrowed to a reproducible environment-specific failure.

Written by the indexing model from the issue text.

Assessment

Tech stack
opencv, python
Domain
computer-vision
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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