Making a partial face mask using this

[skyler14]

Couple of questions:

Does this output have anyway of selecting regions of a face?

Are you aware of any libraries or examples that have used this to make a transparency mask for the image?

Does this have a way of preserving information about hair in front of the face generated. For example hair/or a hand that passes in front of the face

Basically I would like to use this library to quickly project a detected portion of the face, (like the chin or etc.) and then create a transparency mask to use to compare a video and an altered version.