This is kinda dumb, but it used to work in older systems. Haven't tried if lately, and I'm on a new system, so I can't test it right now.
It
MIGHT provide a
HINT for you to proceed experimentally.
No gurantees. Sounds stupid, but it used to work. If the image only exists on the site, and you're just looking for it there, lotsa luck.
If you have the image on your drive, try opening it with a text processor (I always used Notepad) and you will get a bunch of "ASCII Garbage," which is essentially the pixel-by pixel coding translated to <ahem> "text."
Select a small portion of that ascii garbage from what would be the middle of the image as text and then search for that as text on the site.
Like chicken soup for a cold. It might do some good, might not, but it can't do any harm, and please bear in mind that it's from olde pharte technology. Might be nowadays that you can't open images, expecially with the newer formats, with any text processor.
"Oh, noooo, we can't let THEM do THAT."
I'm going through the throes of making my new system conform to my old head, so, again, it's just a HINT.