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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Neural network-based classification of X-ray fluorescence spectra of artists’ pigments: an approach leveraging a synthetic dataset created using the fundamental parameters method

Fig. 3

Examples of XRF spectra of pigments correctly classified and misclassified using the CNN with transfer learning. a The spectrum shown in blue was correctly classified as gypsum, while the one in red was misclassified as chalk. b The spectrum shown in green was correctly classified as gold, while the one in black was misclassified as an iron earth pigment. The relative fluorescence intensities are plotted on a square-root scale with major characteristic X-ray lines labelled for each relevant element

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