Project History
The PreVIEW Digitization project started from October 2004. The project aims at a sustainable approach for digitization at the Hamilton Public Library. We targeted the two dimensional, non- textual historical images, including photographs, negatives, glass negatives, posters, maps and post cards with the year range from 1850s to 1950s. Collections are selected from HPL Local History and Archives Department. The project makes digital images accessible online, providing a resource for students and educators as well as the general public. It raises public awareness of the library’s tremendous resources, and leads to substantial increased use.
The full list of digitized collections
Digitization Technical Overview
Image digitization standards
| Master Image |
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- Tonal depth: 24-bit colour
Format: TIFF
Compression: Uncompressed
- Spatial Resolution:
- 1200 dpi
- 300 dpi for maps (tentative)
- 40-60 dpi for extreme oversize items (over 40”X40”)
- Represents as closely as possible the information contained in the original
- Serves as long term source for derivative files
- Can serve as surrogate for the original
- High quality
- Used for creating high quality print reproductions
- Remains in a controlled environment, with limited use
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| Web Access Image |
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- Tonal depth: 24-bit colour
- Format: JPEG
- Compression: Compressed for speed of access
- Spatial Resolution:
- Resize images to 640 pixels in their longest dimension (either width or height)
- 96 dpi
- Used in place of master image for general web access
- Generally fits within viewing area of average monitor
- Reasonable file size for fast download time; does not require a fast network connection
- Acceptable quality for general research
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| Thumbnail Image |
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- Format: JPEG
- Compression: Compressed for speed of access
- Spatial Resolution:
- Resize originals to 150 pixels in their longest dimension (either width or height)
- 72 dpi
- Designed to display quickly online; allows users to determine whether they want to view Access Image
- Serves as a long term source for derivative files
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Equipment
- Microtek Scanmaker 10000XL with TMA
- Microtek ScanMaker i900
- Canon CanoScan 8800F Flatbed Scanner
- Epson Perfection V750 Pro
- Digital Asset Management System – Canto Cumulus 7.5 Web Publisher Pro
- Storage Array Network (SAN): Dell EMC RAID storage System with Fibre Channel host interfaces and Fibre Channel disk drives
- Dell Graphic Workstations with 20” LCD Monitor
More Digital Projects from Hamilton Public Library
The Local History & Archives Department has several other digital collections online:
The Canadian Public Parks Movement: The Hamilton Experience
Cultural Landmarks of Hamilton-Wentworth
The Heart of the City: A Virtual Tour of Downtown Hamilton
Industrial Hamilton: The Trail to the Future
Other Resources Available Online
OurOntario: digital image, text, audio and video materials about Ontario history, heritage and culture. Search the collections of libraries, archives, museums, historical societies, heritage and community groups, government agencies, and private collections in Ontario and across Canada ... via a single search portal.
AlouetteCanada: "The goal of AlouetteCanada is to create, disseminate, preserve and sustain the knowledge base of Canadian memory organizations in digital form, for the purpose of benefiting all Canadians. AlouetteCanada aggregates digital content for all Canadians".
Libraries and Archives Canada: Canada's national collection of books, historical documents, government records, photos, films, maps, music...and more.
American Memory Project from the Library of Congress: “American Memory provides free and open access through the Internet to written and spoken words, sound recordings, still and moving images, prints, maps, and sheet music that document the American experience. It is a digital record of American history and creativity".
Sponsors
The Hamilton Public Library wishes to thank all who made PreVIEW possible, most notably the Hamilton Public Library Board and the Young Canada Works program.
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