1)
Gallery Magic plugin for WordPress - imports images from local host or any 3rd-party site using CSV dumps.
2)
CyberSEO 7 plugin for WordPress - imports images from local host or any 3rd-party site using CSV dumps, RSS/Atom feeds, XML feeds and JSON feeds. Just give any sponsor-hosted gallery RSS feed and CyberSEO will parse it every defined period and generate the galleries day by day all the time. Setup it once and forget about your sitte, because CyberSEO will take care of it.
Both plugins will automatically create posts/pages for all imported galleries. Both are equipped with schedulers. They will generate gallery titles and descriptions (CyberSEO may even spin them and translate to other languages) using the provided data. They will crop the thumbnails, generate post featured images (if needed) etc.
All operations are fully automated, of course. Your site may
look like this or anyhow else, depending on your WP theme and CyberSEO settings.