Blocking image file indexing without robots.txt

Can this be done?

[Winedark]

I know a robots.txt file can effectively block image indexing by blocking access to certain directories or filetypes, but can this be done without robots.txt (for example, in a situation where root level access is not possible)?

For instance, would funneling access to all of the pages with images on them through a gateway page bearing the meta tag robots="none" effectively protect the image files beyond from common robots -- even if the pages they are on have links backward to the main content?

[Brett_Tabke]

Yes, check the htaccess/apache forum for info on mod_rewrite. You can check the http referrer of the vistor and block access if you don't find it.