Is it possible in an ionic 3 app to overlay a transparent png over the phone screen while taking a picture

Ionic Framework ionic-v3
1

Hi,
I work to an ionic 3 app and I want, while I’ taking a picture to overlay a transparent .png on phone’s screen.
Actually, I want to be able to suggest - using a circle for example - where someone’s face should be positioned while taking a selfie.

Thanks!