Frontend:
My intended goal would be the look and functionality of i.e. google image search (masonry style) or tumblr's archive thumbnail-view or flickr. If you click on a thumbnail you'd get a responsive lightbox with swipe functionality.
Backend:
How can you manage large amounts of images in the backend of joomla? I've researched and tested extensions like phoca, but all of them seem to be best used as smaller photo galleries where a beginner can, just with a few clicks, create his family album.
The closest I've come was Event Gallery but on the backend it was more about orders and selling pictures, less about management.
Tl;dr
primarily for Mobile Users (responsive, swiping)
100.000 images +
ease to use backend file manager or bulk categorizing options
image rating by guests
Can be paid up, to ~50$ (no subscriptions)
Images should be hosted on my server, not google+ or picasa
Thanks for any help :)