Scanography

Fine art scanography differs from traditional document scanning by using atypical objects, often three-dimensional, as well as from photography, due to the nature of the scanner's operation.

Using a computer and a photo editor between the scanning and the printing process provides the artist with a greater level of control, allowing, at a minimum, the ability to "clean" the image by removing specks and other imperfections in the capture.

[4][5][6] Never manipulating the scan, from 2003 artist Brian Miller pioneered movement, lighting, and background in scanner photo capture [7] while maintaining classical subjects like figures and fruit; work available at Pierogi Gallery, NY.

[9] Published 2005 in La Sexualidad Es Tan Fragil Como el Amor, ISBN 84-609-6225-3,[10][11] and 2007 Color Elefante, ISSN 1698-9295.

The depth of field of most scanners is very limited, usually no more than half an inch (12 mm), but the built-in light source provides excellent sharpness, color saturation, and unique shadow effects.

The time it takes the scanning head to traverse the bed means that scanners can only be used to capture still objects, and common items used are flowers, leaves, and other suitable "still life" subjects.

[15] Alternatively, picture frame glass cut a few inches larger than the scanner housing will protect the platen and the device from weeping botanical specimens, paints, melting ice, burning leaves or whatever the challenge.

Removal of the cover also allows the artist to use additional light sources positioned above the bed, which can be used to enhance the depth captured by the scanner.

[1] This also has a very practical application, as it can be used to make images of items being sold on auction sites such as eBay which are too small to be easily photographed with consumer level digital cameras.

This technique probably goes back to the earliest days of flatbed scanners and was mentioned on the photo-3D mail list by Bob Wier on December 14, 1995, though he makes vague reference to earlier experiments by others.

This may be due to the common misconception that the typical flatbed scanner uses an imager that spans the width of the bed, thus leading to the assumption that shifting objects would not produce parallax.

The most basic version of this technique involves simply placing the object upside down on the scanner and moving it by hand, but this leads to irregularities between the two images.

A variation of this method was used in a patented system which involved mechanically moving an inverted scanner to generate multiple views to produce 3D lenticular artwork.

The high resolution of consumer level flatbed scanners allows taking stereoscopic images of objects that would otherwise be possible only through a stereo microscope, with similar limitations involving depth of field.

"Bryone-dioique", a still life done on a scanner by French artist Christian Staebler
A magnifying glass and CD-ROM discs placed at an angle to the bed show reflection , refraction , and diffraction effects that can be generated.
"Self portrait with scanner" shows the effects of the focused lighting and limited depth of field when using a scanner to capture a 3-D object.
Propping the cover open and adding an external light source
An external light source and a moving subject produce different effects in this image.
A piece of amber imaged with this technique. Looking at such an image on a high resolution screen or printout allows studying fine details in a way not otherwise possible. Anaglyph, Red left.
An apparently floating cat scan