Dark papyri are often difficult to decipher because of the lack of contrast between writing and background. Good results are obtained in the far-red near-infrared spectral band. The use of modern CCD TV cameras and films for aerial photography in this band is described as a flexible tool for inspection and fine-grain photographic recording, respectively. A dark papyrus has been examined. Images taken in this spectral band are shown to demonstrate the improvement in legibility.
Use of CCD Cameras and red extended photographic film for inspection and recording of dark papyri / Andorlini I.; Menci G.; Bertani D.; M. Cetica M.; Poggi P.. - In: SCIENCE AND TECHNOLOGY FOR CULTURAL HERITAGE. - ISSN 1121-9122. - 2(1993), pp. 115-122.
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