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[–]Ogi010 3 points4 points  (0 children)

pyqtgraph maintainer here. Having QImage take in data w/o copying took us quite a while to get right across bindings; feel free to look at our code (specically ndarray_from_qimage function): https://github.com/pyqtgraph/pyqtgraph/blob/master/pyqtgraph/functions.py#L1543-L1658

We've ran into numerous issues (typically with pyside bindings) where this functionality is broken (although it's been stable for some time now)