Python GUIs - pyqg6https://www.pythonguis.com/Create GUI applications with Python and QtMon, 11 May 2020 09:00:00 +0000Fixing Crashes When Using NumPy Arrays with QImage in Qt Threads — How to safely pass image data between threads when streaming video or updating displayshttps://www.pythonguis.com/faq/crashing-in-qrunner-threads-with-numpy/I'm using a threaded runner to stream a live video feed by converting a NumPy array to a <code>QImage</code>, then to a <code>QPixmap</code>, and displaying it on a <code>QLabel</code>. But I'm frequently encountering crashes when the label is resized too quickly or the scroll area is scrolled. Could this be a problem with the <code>QImage</code> memory buffer getting cleared before the <code>QPixmap</code> can update? Is this fixable, or is it a fundamental issue with threads in Python/Qt?Martin FitzpatrickMon, 11 May 2020 09:00:00 +0000tag:www.pythonguis.com,2020-05-11:/faq/crashing-in-qrunner-threads-with-numpy/pythonpyqg6pyside6threadsnumpyqimageconcurrencyqtqt6data-sciencepyside6-data-sciencepyside6-concurrency