Non‐invasive on‐site method for thickness measurement of transparent ceramic glazes based on depth from focus

Glazed ceramics are a common material analyzed through geochemistry, whether in the form of tableware collected during excavations or tiles observed as part architectural features. Within framework these studies, measuring thickness transparent glaze is one useful variables available for characterization ceramic, contributing to searches provenance well serialization. However, this task often requires invasive methods performed laboratory, which may not always be possible. This paper develops non-invasive and portable on-site system ceramic glazes. Based on depth from focus technique, method makes use classical camera, macroscopic lens, translation stage, laptop control. In article, we test measurement ten samples compared results obtained sections scanning electron microscopy.