What is the solution for resolving the error "QObject::moveToThread:" in python's OpenCV?

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The "QObject::moveToThread:" error in OpenCV is related to threading issues. One possible solution is to ensure that all functions that modify GUI elements are run on the main thread. This can be achieved in PyQt by using the QMetaObject.invokeMethod() function to call these functions on the main thread.

Another solution is to use the python threading module to manage threads in your OpenCV code. In this case, you need to make sure that all GUI operations are executed on the main thread, while other computationally intensive tasks are run on separate threads.

Finally, you can try using the cv2.imshow() function instead of the PyQt GUI when displaying images, as this function is thread-safe and works well in multi-threaded environments.