Image linking add-on?

[Blakefire]

Is there a plug in so when users upload images to my site, using the gallery add-on, if they post it on another site it will show my sites name on the image, like a sort of branding?

 

[Jake Bunce]

This is similar, but not quite what you want:

http://xenforo.com/community/threads/replace-image-in-post-with-another.28665/#post-333954

Dynamic image branding based on the referrer requires custom programming.