Preservation of cultural inheritance like paintings, manuscripts, maps and old photos through documenting and transforming to digital form for archives, research, conservation or for display is increasing remarkably. Museum laboratories and university researchers use wider range of analytical instruments to study collections. There is need to study, for example, materials like pigments, dyes and binding media is not only for to observe possible degradation or changes due to aging or environmental conditions, but also for to reveal artist’s painting technique and methods used in work of art.
Hyperspectral imaging (HSI) is gaining wide acceptance as one of the most valuable optical tools for art archiving and restoration. HSI is an optical instruments used to measure the reflectance or transmittance of light by materials and the results are presented in the form of spectral curves. It is non-invasive and non-destructive imaging technique that is safe for even the most fragile samples. It is used remotely to scan all parts of the sample with high spatial resolution (down to 15 µm pixel size). HSI records both spatial and spectral information which can be used to classify chemical, physical and/or biological properties of the object.