Taxonomy terms for ImageField FILES?

I am currently stuck with building a view for the Image Browser module. That module comes with a pre-defiend view based on FILE and selects the file path and file ID (id). I need to add an exposed filter to it by Taxonomy Term. Unfortunately the File (there is such a table I presume) does not have a relationship to taxonomy.

I store my pictures in ImageFields and ideally I would base my view on Node and add the Taxonomy filter to it. unfortunately the File ID (fid) is not available for selection if the view is based on Node.

So if I am to stick with the original approach, how can I add a taxonomy filter to a view based on files?

Thanks for the help!