Multispectral imaging is a technique to recover and preserve damaged or illegible texts. This imaging technology makes palimpsests readable (both the under and the over text), discerns erased words, and even recovers manuscripts bombed during WWII.
Main, auxiliary and transmissive lights produce a controlled spectrum of light which our specialized camera then records. The bands of light range from the short reflective bands of UV through the visible spectra and into the long wave bands of infra red. The different bands of light, particularly when combined in later processing, produces an image of the material which the naked eye cannot see.
Multispectral imaging was first applied to manuscript recovery by the team working on the Archimedes Palimpsest Project. We work closely with many of the original scientists from this groundbreaking project, including Roger Easton and Keith Knox. As part of the Lazarus Project, these scientists and others continue to perform groundbreaking research at top libraries and institutions around the world, including Cambridge University, the Beineke Library, the New York Public Library, the National Library of Wales, and many more.