The New York Public Library (NYPL) and Joshua Heineman have launched an innovative project -- the NYPL Stereogranimator -- that turns old stereograph images into modern GIFs.
A stereograph is the combination of two still images that have been shot at two different angles that, when viewed through a stereoscope, will create a 3D image. Heineman discovered that these stereographs could be turned into modern-day animated GIFs, resulting in an interesting image that is both moving and three-dimensional. Subsequently, Heineman and the New York Public Library created the NYPL Stereogranimator, an online DIY program that lets users turn one of the 40,000 stereographs from the library's collection into a GIF and 3D anaglyph. Try it out by visiting the NYPL Stereogranimator site.