Abstract
Hyperspectral imaging (HSI) techniques are widely used for fine arts diagnostics, in particular for pigments and binders identification. In fact, HSI allows to quickly obtain basic spectral reflectance information on large pictorial surfaces, which can then be further investigated by means of other more precise punctual techniques. HSI is usually performed by using ad hoc apparatuses (often expensive), equipped by proprietary software for the spectral analysis. However, it is possible to assemble custom devices, having the twofold advantage of being less expensive and more flexible than ad hoc apparatuses.
In this work we present both a custom assembled apparatus for HSI and the originally developed software application for analyzing HSI images, in order to extract local spectral information. The hyperspectral camera has been set up by using an LCD tunable band-pass filter together with a low noise scientific-grade camera. The software application for spectral analysis, developed in Wolfram Mathematica, features a very friendly user interface allowing to get the reflectance spectrum in a point of the image, by just clicking on that point.
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Sapia, P., Barone, P. (2022). Hyperspectral Imaging of Artworks: A Custom Assembled Apparatus Endowed with an Open Source Software for Hypercube Analysis. In: Furferi, R., Governi, L., Volpe, Y., Seymour, K., Pelagotti, A., Gherardini, F. (eds) The Future of Heritage Science and Technologies: ICT and Digital Heritage. Florence Heri-Tech 2022. Communications in Computer and Information Science, vol 1645. Springer, Cham. https://doi.org/10.1007/978-3-031-20302-2_6
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DOI: https://doi.org/10.1007/978-3-031-20302-2_6
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