Multispectral Imaging (MSI)
Multispectral Imaging (MSI) is used to identify and map pigments in polychrome artworks and to enhance the reading of faded historical documents. Conservators can use this technique to distinguish original sections from inpaints and to select the proper conservation procedures. MSI analysis is based on the same concepts of Reflectance Spectroscopy but MSI has the added advantage that the pigments can be identified and mapped remotely on large areas rather than just a spot. Images of an object in a series of spectral bands are acquired, and once the images are registered and calibrated, they are uploaded into a Reflectance Image Cube. We developed and we propose an affordable MSI system with a complete workflow for spectral images calibration, registration, and pigments mapping.
