SPEC Kit 335: Digital Image Collections and Services · 97
BROWN UNIVERSITY
Digital Production Services
http://library.brown.edu/dps/
Brown University Library |Digital Production Services
http://library.brown.edu/dps/[8/7/13 4:38:23 PM]
Metadata Contact Rights &Reproductions Digitization
Digitization
Digital imaging technology has become ubiquitous, but in order to achieve high quality image
capture and reproduction DPS adheres to imaging best practices established by the cultural
heritage and library communities at large. In addition to the image capture stage, color
management workflows and principles are also important to implement in relation to viewing
conditions (display environments and monitors) and printing (output devices and materials DPS
does not offer printing services).
Handling guidelines provide instruction on the proper handling of archival and special
collections materials during digitization, and are modified for specific projects based on the
materials being digitized and their condition. Review of the condition of the materials takes
place prior to the beginning of a digitization project and is done in consultation with
Preservation staff. Special care is taken with fragile, rolled, or oversize materials.
The various tasks performed by Digital Production Services are tracked by an in-house project
management system. From the creation of a digital surrogate entry to the publication of its
METS record, the system also records user permissions, equipment and software registration,
and provides links directly into the Brown Digital Repository (BDR). Security is integrated with a
campus-wide authentication system. [top]
RECOMMENDED IMAGE FORMATS
File Format Color
Space
Resolution
“Master”
(archival)
file
8-bit uncompressed TIFF
(Tagged Image File Format)
Adobe RGB For images: 600 ppi (min.) at actual size for text:
300 ppi (min.) at actual size.
Web-based
display files
JPEG and JPEG2000 sRGB JPEG: assorted thumbnail sizes JPEG2000: varies
per view, up to max resolution of “master” file.
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DPS IMAGING EQUIPMENT &SOFTWARE
Use Cases Hardware Software
Flatbed
scanning
For flat, printed materials
and photographs
Epson Expression 1640XL and 10000XL SilverFast v6.4 and
v8 (via Adobe
Photoshop import
plugin)
Negative
scanning
Slides and 4x5
transparencies
Nikon Coolscan 5000 (slides) transparency
adaptors for Epson Expression 10000XL &
1640XL (4x5 transparencies)
Nikon Scan, Epson
Scan
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