Janosky (2004) "Using JPEG2000 for Enhanced Preservation and Web Access of Digital Archives -- A Case Study"

Janosky, James S. and Rutherford W. Witthus.2004. Using JPEG2000 for enhanced preservation and web access of digitalarchives – a case study. In IS&T's2004 Archiving Conference:145-149. San Antonio, TX.

Using the Aware, Inc. JPEG2000Image Server as the backdrop, this article provides a review of JPEG2000standard’s file formats, encoding options, and use of metadata boxes to storetechnical metadata, TEI Lite and PDF forms of the transcription, and a short EAD finding aid. Available online at http://charlesolson.uconn.edu/Works_in_the_Collection/Melville_Project/IST_Paper3.pdf

Author Abstract

JPEG2000 standard (ISO 15444-1) provides the advantages of advanced wavelet compression to digital archiveswhile eliminating the concerns associated with proprietary compression and fileformats. JPEG2000 allows archivists to preserve culturally significant digitalobjects using lossless compression while making the collection more accessibleto a wider audience. From a singlemaster JPEG2000 image, one can extract a highly compressed image fortransmission and display it in a web browser. The layered file format supportsextracting any desired image size or quality. Tiling, Progressive Display, andClient- Side Region of Interest can be combined to provide for effectiveviewing of archive- quality files over a limited bandwidth. Compliance with anISO standard and embedded support for multiple types of metadata each helpensure that the archive content outlives the systems that created it. Using Charles Olson's Melville Project at theUniversity of Connecticut as a case study, this paper demonstrates thecapabilities of a JPEG2000 Image Server and discusses how the JP2 and JPX filescan be used to support multiple types of metadata for such archives.