Upload image UI in addition to URL

This module is great and I have it working without encountering any problems. I was wondering if it were possible to add an image upload field in addition to the URL field that is currently exposed in the UI? I would like the ability for a site maintainer to upload an image there since they wouldn't have FTP/server level access to use a URL. Images would then be uploaded to the files directory (e.g. sites/default/files/backstretch/__.jpg)

Just a more user friendly mechanism. I'm not much of a developer but I will continue to look into a way of presenting this option.