How can one select the GUI backend using OpenCV and Python?
If I install opencv with conda (conda install -c conda-forge opencv), I get the QT backend:
GUI:
QT: YES (ver 5.12.1)
QT OpenGL support: NO
Win32 UI: YES
But, if I install opencv with pip inside (pip install opencv-python), I get the something else:
GUI:
Win32 UI: YES
VTK support: NO
How can I control or select which backend I want?