The MARC project (Methodology for Art Reproduction in Colour) developed techniques to scan high resolution images directly from paintings and print them as acurately as possible. MARC ended in March 1996. It built on a previous ESPRIT II project, VASARI , which produced a system for high resolution colorimetric imaging of paintings. MARC involved:
The new MARC camera is a more portable digital camera providing up to 20,000 by 20,000 resolution images which have high colour accuracy (around 3 just visible units). This is higher accuracy tham film, and sufficient resolution to print details simply by extracting a portion of the image file. The largest image file produced so far was around 1.6 Gbytes (a 20x20k of Holbein's Embassadors in The National Gallery).
EC page on MARC