The presentation of large and high-quality images through a web browser has led to some significant changes and improvements in the last few years. A more extensive analysis of file formats for images and how to make scanned documents web accessible is presented in the article Are Your Digital Documents Web Friendly?: Making Scanned Documents Web Accessible ( Zhou, 2010). This data seems to confirm the early finding in a 2005 survey conducted by the Coalition for Networked Information ( Lynch and Lippincott, 2005) where the authors concluded that a growing number of institutions were using institutional repositories for not only e-prints or born-digital materials, but also for digitized materials such as books, maps, and other primary source materials that are traditionally housed in libraries’ special collections or archives.ĭigitized images are often saved as either TIFF or JPG2000 files, especially for master copies, JPEG is the preferred format for access copies and it remains as the most common image format used on the web. In fact, according to the DSpace Registry, 249 of 1,117 (22%) institutions are currently storing "Images" in their repositories 231 (21%) are using DSpace for non-traditional IR content such as: Image Repository, Subject Repository, Museum Cultural, or Learning Resources. Although some may argue that the need of a viewer for non-born-digital files is a result of using a system for something that was originally designed for born-digital and traditional IR content such as PDF files others may also agree that the type of content and file formats in digital repositories is already diverse. This article aims to provide an overview of the need and current development of Document Viewers for digitized objects in DSpace repositories. The combination of current technologies such as Djatoka Image Server, IIP Image Server, DjVu Libre, and the Internet Archive BookReader, as well as the growing number of digital repositories hosting digitized content, suggests that the DSpace community will probably benefit with an "out-of-the-box" Document Viewer, especially one for large, high-resolution, and multi-page objects.Īs academic and research institutions continue to work with large and diverse type of content for their digital repositories, there is an inherent need to evaluate, prototype, and implement user-friendly websites -regardless of the digital files' size, format, location or the content/digital management system in use. According to the DSpace Registry, 22% of institutions are currently storing "Images" in their repositories and 21% are using DSpace for non-traditional IR content such as: Image Repository, Subject Repository, Museum Cultural, or Learning Resources. This article aims to provide an overview of the need and current development of Document Viewers for digitized objects in DSpace repositories -including a local viewer developed for a newspaper collection and four other viewers currently implemented in DSpace repositories. As more institutions continue to work with large and diverse type of content for their digital repositories, there is an inherent need to evaluate, prototype, and implement user-friendly websites -regardless of the digital file size, format, location or the content management system in use.
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