http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
With filters, you can overlay specific information over your snaps. This video shows how to add several different kinds of filters, including geolocation or time filters, black-and-white or sepia filters, or an on-demand filter for a custom event.
Title from resource description page (viewed March 21, 2018).