Need help identifying an image resizer add-on

[gredaline]

Hello,

I've inherited a customized installation of osCommerce that is using an image resizer that I can't identify. It resizes images based on the URL--so that xxx-300.jpg makes a 300px version of xxx.jpg on the fly if the file doesn't already exist.

Is this an osCommerce add-on or something separate? I can't find any obviously named additional files or extra options in the admin. I checked what seemed like the most likely candidates on the community add-on site and they didn't seem to work this way either. Anybody have an idea?

 

Thanks!