[sv123]

I think his point was that you can certainly detect an image in use on other sites but that does not matter because it may or may not be infringement. Nobody could possibly know if he licensed his work to be used by certain sites or not.

[noduerme]

The comment you guys are responding to was in jest. I wrote the original post in this subthread. My point about Tineye was that it's obviously capable of picking up duplicates (which is the immediate question I was responding to) and equally incapable of determining which of those duplicates are licensed.