I have an image gallery which opens large images in a "new page" which has little or no other content on the page other than the large image. So for better user experience and not to spam search engines, recently I had added the meta tag noindex,follow on these pages.
Within 1 month all these large image pages are deindexed from the google index, which is good, however I see that all the images attached to these pages are also not found in index. I even submitted a images map to google but it wont index my large images.
Also, the directly listing of these image folders is disabled, if that could be a reason? I don't want directory listing.
Please advice ways to get images indexed and keeping pages out of index.