About RTI

What is Reflectance Transformation Imaging? Basically it is a way to image fine texture details on objects that are very difficult to capture with one or to photographs. For example fine scratches in multiple directions could require many raking-light images to be taken normally. RTI captures the object’s surface.

single frame from a capture sequence on pisanduba tablet from the Ashmolean museum , Oxford. There is rarely one perfect light direction for some objects, which is where RTI becomes very useful as the viewer controls the light angle.

See the COSH page and the CHI page for a fuller description and try our online demo to see what it looks like.