An overcast day – the perfect conditions for Reflectance Transformation Imaging acquisition. Nine students joined us from 1 to 6 pm to image 9 stones. The students were divided into two groups and produced some of the best RTIs to date. We imaged two limestone and seven marble head stones.
Here are some screen shots and comparison images:
one of the oldest stones / local limestone / regular light / specular enhancement
the bio growth and rain drops obscure some of the surface information
practically illegible stone of Philip Ferguson Hall / regular light / specular enhancement
marble insert into sandstone / Ann Jane Brown / Regular Light / Specular Enhancement
click on any of the images to view and/or enlarge them
related video from UCS ICT