Technical Papers When imaging cultural heritage objects, conservators and others express concerns about the illumination levels used, the question can be put simply: “What are the light levels (of the imaging modality to be used) and how do they compare to museum lighting standards?” We will provide a response using data from the Leon Levy Digital Dead Sea Scrolls Library (Greg Bearman, Ken Boydston, Bill Christens-Barry) A 19th century British painting depicting the Giudecca Canal and the Santa Maria della Salute Basilica in Venice was documented using a combination of digital and computational imaging techniques: multispectral imaging, Reflectance Transformation Imaging (RTI), and photogrammetry. These methods were chosen with consideration for the long-term preservation and reuse of the data using well-documented and open-source standards. Rapid developments of computational photography methods and improvements in digital imaging equipment have made these techniques highly portable and applicable to cultural heritage in situ, outside of an institutional research setting. These methods provide a detailed digital record documenting the condition of the painting and providing a basis for further analysis and scholarship regarding the artist’s technique and use of materials. Wilhelm Imaging Research paper titled: "Use of a Multispectral Camera System and Very Small, Comprehensive 'Micropatch' Test Targets for Full Tonal Scale Colorimetric Evaluation of the Permanence of Digitally-Printed Color and B&W Photographs" presented at "Imaging Conference JAPAN 2011" in Tokyo on June 7, 2011. The conference was sponsored by The Imaging Society of Japan. |