How to find someone's Facebook if I only have their picture?

[Melancholie]

Hi there,

I figured out pretty quickly I was getting catfished on OKCupid. Anyway, the thing is this guy/girl isn't using pictures of a celebrity or anything. It looks like he's using pictures of just an average college age guy. They seem to be candid photos, so I'm guessing they come from Facebook. I feel like this guy should know that his likeness is being used for perhaps unsavory purposes, but I can't seem to find anything via Tineye or Google reverse image search. I think the catfish is cropping or otherwise adjusting the photos so that if they are published, they won't come up. Is there a reverse image search that will only focus on a portion of the image instead of the entire thing so that I could bring similar ones up even if it was cropped? Or is there a way of searching Facebook by image?

[john]

You can go to google images and do a reverse picture search.