Figure 6From: The Louvre Crucifix by Giotto – Unveiling the original decoration by 2D-XRF, X-ray radiography, Emissiography and SEM-EDX analysisGrey scale image showing the different response in the X-ray images reflecting the presence of various pigments. In particular, the black visible lines produce 3 different answers. (© C2RMF Elisabeth Ravaud).Back to article page