ya this is really strange i'm getting from 200 : 400 Unique Visitors per day that makes about 800 : 1300 page impressions just from google images not so bad
if u said that yr image is nt yr product related n getting more n more traffic so first u check bounce rate to their Visitors. visitors/bounce rate % = actual visitors. n also check conversion.
Google image traffic is GREAT! I make tons of money directly form Google/Live image traffic. Blocking it would be a very bad move.
if you put javascript on the page, it could stop all your image traffic... i know, because that's what happened to me when i implemented a framebuster script. you could put banners on it, but it's still crap traffic that even the banner companies don't want... with adsdaq banners, it's paying a nickel per thou, with a 6-7% fill rate :-0 but targeted banners should pay better.