https://www.microsoft.com/cognitive-services/en-us/face-api isn't open source, but https://cmusatyalab.github.io/openface/ is
It's decimal, out of 1
https://www.microsoft.com/cognitive-services/en-us/face-api isn't open source, but https://cmusatyalab.github.io/openface/ is
It's decimal, out of 1