Answers are grounded in this paper and cite their sources.
Reflectance Transformation Imaging (RTI) has already been used for about twenty years in the field of Conservation and Restoration of Cultural Heritage for non-invasive condition assessment and documentation. However, its potential can be expanded. This paper will discuss the benefits of applying this readily available and low-tech technique to evaluate and monitor conservation treatments. Since the RTI software calculates the exact angle of the light for each RTI image taken, lighting conditions can be reproduced, leading to a standardisation of oblique light imaging. As a result, images produced before and after a conservation treatment can be compared. This allows for an objective evaluation of the treatment carried out and enables monitoring the condition of the painting over time.
No takes yet. Share an insight, caveat, or question.
Boute et al. (2018) studied this question.