Get Notification of Our Latest Releases

Stay informed about new releases of software and user guides: sign up for our e-newsletter.


RTI Question? Ask on the CHI Forums

CHI offers a free online forums site where you can share your questions, insights, and issues to gain a more complete understanding of Reflectance Transformation Imaging (RTI) and its practical applications. Join the conversation!


What is RTI?

Would you like to know more about Reflectance Transformation Imaging (RTI)? More….


Shooting an RTI: Miro print

Downloads Archive

Archive icon

This page provides links to previous versions of RTI user documentation and software offered by Cultural Heritage Imaging (CHI). As new, updated software and guides become available, we will move the older versions to this Archive area.

» See also the newest versions of our freely available software and guides.

RTIViewer Version 1.0.2
RTIViewer Version 1.0.2 Apple/Mac logo Intel Macs
RTIViewer Version 1.0.2 Windows logo Win32
RTIViewer User Guide 1.0.2 (PDF) Acrobat PDF logo
Note: the User Guide is also contained in the software download. The User Guide includes installation instructions.
Example Files symbol for example files Ancient Papyrus.zip (6 MB) Ancient Papyrus from the Bancroft Library

Rock Art Petroglyph.zip (4.8 MB) Legend Rock State Park in Wyoming
License GNU license icon This software is available under the Gnu General Public License version 3. If you wish to receive a copy of the source code for RTIViewer Version 1.0.2, please send email to info@c-h-i.org.

RTI Capture User Guide Version 1.1
RTI: Guide to Highlight Image Capture, Version 1.1 (2.5MB) Acrobat PDF logo
This is the original v1.1 guide describing the camera, lighting, software, object and reflective sphere setup and capture sequence process.