Question: how to enable GPU support for OpenCV?

[SierraNL]

In the readme it states the following:
Using OpenCV, supporting GPU acceleration

But how does that work?
Should a device be mapped in the docker-compose file, like it works for Plex?

[RaimondB]

Well, I couldn't test it before since I did not have a discrete GPU in my laptop. But now I have and it turns out that OpenCVSharp does not support it, while openCV itself does. Maybe switching to a different library such as EmguCV could solve this. But since I don't have a GPU in my Intel Nuc server, switching over the library is not my biggest priority at the moment ;-)
Maybe we could do an experiment to see how big the impact of a switch would be. If both libraries closely follow OpenCV API it might not be that big a change..

[RaimondB]

I did some tests with EmguCV, but interestingly, while it was using GPU, it was actually a lot slower as a whole. So something interesting is happening here with GPU/CPU transitions I think.. For now I stick with OpenCVSharp, and when I have some spare time I'll look into it again ;-)