https://blog.csdn.net/seniorwizard/article/details/111309598
https://programtalk.com/python-examples/PyQt5.Qt.QImage.scaled/
# org
img = QImage(I(image))
# using scaled image
img = QImage(I(image)).scaled(width, height, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
img.save(dest)