Profile Picture is a Joomla package that enables your users to upload their profile picture to your Joomla website. It includes the following extensions:
Profile Picture User Plugin
This is the main plugin that allows your users to upload, remove and change their profile picture. Administrator too can manage these pictures in Joomla's Users Manager.
Profile Picture Library
Profile Picture library provides API for third party developers to access and display users' profile picture.
Go to https://github.com/mosets/profilepicture for more information and how to use it in your extension,