Pages from bearman_g_etal_new_imaging_methods_to_improve_text_legibility_of_ostraca_PJAEE_8_2-2Abstract We report on experiments on three new methods to improve text contrast for carbon ink ostraca. These are (1) Raman imaging, (2) Micro-focus XRF scanning and (3) exogenous contrast agents either to enhance the X-ray signal or create an optical fluorescence signal. We tested all three methods with modern ‘stunt’ ostraca, made using a variety of carbon-based inks. In each imaging modality, the inks are clearly differentiated from the clay background. The exogenous contrast enhancement, in particular, suggests a variety of approaches to improving text legibility.


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