If you’ve found yourself on this page, it’s likely through a search on Google Images. Basically, when I both re-designed and moved my site, I checked what images Google had indexed. I placed what images I was not using on the new site here. I then did a 301 re-direct for each image to this page, preserving the titles and meta information per the old site.
It was a method I used to preserve my SEO when moving the site.