Naveenn - 1:10 pm on Aug 13, 2012 (gmt 0)
I had removed the "image pages" form index was because my site rank fell badly since "panda" update(s), this was an experiment I tried to improve ranking of category pages, large image pages I thought were identified as "thin content pages" and hence the penalty.
The thumbnail images are still indexed as those are on category pages, but "large images" have disappeared on the ground of what I think is related to "noindex" tag on large image pages.
I have even submited an images map which contains category page link and all large images under it, but google won't index them.
If I enable directoy listing, would the images then get indexed?