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Bruner Project
Spring 2000 |
The scanner settings used are determined by the type of document in hand. In the Bruner project there are 4 document types:
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For each of these documents and archival "master file" is created. These large, high-resolution TIF files are created in order to retain as much data as possible from the original document scan. Smaller files (GIF, JPEG) are then derived from the master a
nd used for screen display. Because these derivative files are compressed, they will load much faster and use up significantly less file space than their archival TIF counterparts.
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| Text Document | 400 dpi |
TIFF (uncompressed) |
GIF for docs up to 8.5"x14" or 119 sq. in. JPEG for docs over 8.5"x14" or 119 sq. in. |
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Drawings, Maps, Illustrations, etc. | 200 dpi |
TIFF (uncompressed) |
JPEG |
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Photographs |
200 dpi |
TIFF (uncompressed) |
JPEG |
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Graphics |
200 dpi |
TIFF (uncompressed) |
GIF for docs up to 11"x17" or 187 sq. in. JPEG for docs over 11"x17" or 187 sq. in. |
| Standards information derived from NARA Guidelines for Digitizing Archival Materials for Electronic Access, compiled by Steven Puglia, National Archives and Records Administration, 1998. |
Oversized Images
If an image is larger than legal size, it must be scanned in pieces. Follow the same resolution standards outlined above, taking into consideration the size of the "whole" document. Photoshop will be used to "reassemble" the document.
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Please send comments, suggestions or questions to: askcts@acsu.buffalo.edu