Use GPU for face detection

[rahmanshaber]

Currently it take full CPU power to detect faces. Using GPU would speed this up greatly

[blissd]

Hi @rahmanshaber. Thank you for your suggestion. Yes, that would be nice. However, it seems that GPU acceleration for machine learning targets NVidia but I don't have any NVidia GPUs so I'd never be able to test it. I think I'd only be interested in GPU acceleration if it could work on more than just NVidia.

If someone can get GPU acceleration to work on more than just NVidia, then I'd welcome a PR. That will probably require a different face detection library than is currently used in Fotema, though.

[rahmanshaber]

Yes, are you using openCV, it seems they have a some sort of support for amd gpu