Here's a simple checklist you can use to determine if a use of your image is a copyright infringement.
- You own the rights? (The image wasn't a work for hire.)
- The image was used without permission?
- The usage doesn't fall under fair use protection?
If the answer to all of these questions is yes, then it's most likely a copyright infringement you can take action on.
Info on the Binded Help Center is not legal advice. If you have legal questions you should ask an attorney.