The Largest digital photo in the world available online: 8.6 Gigapixel

The Inventory office - dept.Cultural Property of Diocese of Novara, and HAL9000 Srl from Novara, have produced a digital

picture of 8,6 billion pixels showing the “Parete Gaudenziana”, a fresco made by the painter Gaudenzio Ferrari dated 1513,

which can be seen in the partition of the Church of Santa Maria delle Grazie, in the convent of Varallo Sesia, diocese of

Novara and Province of Vercelli.
The image stands at the boundaries of the modern opportunities as for the final dimensions of the digital picture. The

picture has been created joining electronically 1145 images, each 12,2 Megapixel and 16 bit per color channel.
This new digital technology allows the production of unique images that allow the exploration of the works of art in

extremely close details.
The 8,6 Gigapixel digital picture of the Parete Gaudenziana can be explored in detail on the site www.haltadefinizione.com

Technical Info

Photo Shots: 1.145
Computed Data: 84 GigaByte
Computed Pixels: 13.982.996.480
Color Depth: 16 bit per channel

Cropped Image Size: 8.604.431.000 (w. 96.679 x h. 89.000) pixel
Image Size before the final crop: 10.293.864.000 pixel (w. 103.560 x h. 99.400) pixel
Size on Hard Disk of the 3x16 bit final image: 51.625.586.000 byte

Shooted Scene Size: 10,80 m x 9,94 m (35,43 ft x 32,61 ft) corresponding to 107,35 m2 (1155,37 sqr feet).

True Scale Resolution: 227 dpi
Pixel Density: 80 pixel/mm2
Linear Pixel Density: 9 pixel/mm

Hard Disk space dedicated to 16 bit computing: 1,8 Terabyte
Ram: 16 Gigabyte
Processors: 4 x AMD Opteron™ 885 Dual Core 64 bit

Shooting on January 30, 2006
Shooting time: 13 hours
Computing time: 3 months
Final Image generated on June 15, 2006