Spectral Mapping Techniques for the Stratigraphic and Compositional Characterisation of a 16th-Century Painting

Year: 2024

Authors: Dal Fovo A., Morello M., Mazzinghi A., Toso C., Galeotti M., Fontana R.

Autors Affiliation: Natl Inst Opt CNR INO, Natl Res Council, Largo E Fermi 6, I-50125 Florence, Italy; OPD Scuola Alta Formaz & Studio, Via Alfani 78, I-50121 Florence, Italy; Univ Florence, Dept Phys & Astron, I-50019 Sesto Fiorentino, Italy; Natl Inst Nucl Phys INFN, Florence Div, Via Bruno Rossi 1, I-50019 Sesto Fiorentino, Italy; Opificio Pietre Dure, Vle Filippo Strozzi 1, I-50129 Florence, Italy.

Abstract: Identifying a painting’s pigment palette is crucial for comprehending the author’s technique, as well as for evaluating the degradation of the materials. This paper investigates the stratigraphy and pigments distribution of a 16th-century painting from the Uffizi Galleries collection. Firstly, we obtained compositional information through the cross-sectional analysis of samples using scanning
electron microscopy. Secondly, we performed elemental mapping using macro-X-ray fluorescence followed by reflectance imaging spectroscopy. The painting image cube was analysed using the spectral correlation mapping (SCM) classification algorithm to accurately identify the distribution
and composition of the pigment mixtures.

Journal/Review: HERITAGE

Volume: 7 (3)      Pages from: 1320  to: 1333

More Information: Director of the Uffizi Galleries Eike Schmidt and Superintendent Emanuela Daffra (OPD) are gratefully acknowledged.
KeyWords: reflectance imaging; spectral correlation; MA-XRF; SEM-EDS; stratigraphy; pigment mapping
DOI: 10.3390/heritage7030063

Citations: 1
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-17
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