[sk5t]

If simple image matching is effective, scammers will just rotate/warp/tint their images. These techniques might also take the legs out from an MT approach. Sellers might also get a product online with one image, then later change to another/reorganize the album.

[hysan]

Wouldn't that be a good thing? Buyers will see those slightly off images and it will set off red flags.

[prepend]

Perhaps, but that’s harder than you think. Look at all the shit Getty does to find images that have alters, changes, stuff like that.

My point is that they aren’t doing anything. You point out a couple of edge conditions as a reason not to try. Even reducing fakes by 20% would be great.

If this cost Amazon money they would be trying to stop it.

[8note]

it's pretty cost effective for the counterfeiters to be mechanical Turks, or pay people to be mechanical Turks.