Decifrare l’invisibile. L’uso dell’RTI per l’analisi e la lettura dei graffiti

In recent years, the development of non-invasive digital mapping techniques, and in particular Reflectance Transformation Imaging (RTI), has profoundly reshaped documentation methodologies in the field of epigraphy. This paper presents the case study of Casa IIIM, in the Hellenistic-Roman quarter of Agrigento, where the application of RTI enabled the analysis and interpretation of a complex corpus of wall graffiti on plaster, often severely affected by degradation phenomena primarily linked to depositional processes. The results show how this approach has allowed scholars to recover information and details otherwise undetectable with traditional methods, yielding significant data for the reconstruction of the historical and archaeological context of Agrigentum, within a perspective that goes beyond the mere documentation of individual artifacts.