It seems like opencv is installed through the lambda-stack. (see e.g. here: Lamdastack Quick Introduction/ FAQ - Technical Help - DeepTalk - Deep Learning Community). However, when I try to import it, it seems to be a non-cuda-version of opencv:
>>> import cv2
>>> cv2.cuda.getCudaEnabledDeviceCount()
0
Is that so, and how do you recomend installing OpenCV?