Lippmann Photography: A Signal Processing Perspective

Lippmann (or interferential) photography is the first and only analog method that can capture full color spectrum of a scene in single take. This technique, invented more than hundred years ago, records colors by creating interference patterns inside photosensitive plate. provides great opportunity to demonstrate several fundamental concepts signal processing. Conversely, processing perspective enables us shed new light on technique. In our previous work [1], we analyzed spectra historical plates using own mathematical model. this paper, provide derivation model validate it experimentally. We highlight behaviors whose explanations were ignored physicists date. particular, show generated are fact distorted versions original spectra. also these distortions influenced thickness plate reflection coefficient reflective medium used photographs. verify with extensive experiments