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Collection:

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Title
Austrian National Library - Digital Book Collection
Description The Austrian Books online project of the Austrian National Library is currently creating a digital book collection from the 16th to the 19th century of about 600.000 books that will be digitised over the coming years.
Licensing Sample only available to SCAPE partners.
Owner Austrian National Library
Dataset Location Austrian National Library

Issue:

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Title
IS1 Digitised TIFFs do not meet storage and access requirements
Detailed description A important part of digital preservation is the willingness and financial commitment of a memory institution to preserve the data for the long term. Given the time scales in question any cost saving is to be welcomed.

At the BL, as elsewhere, the cost of storing uncompressed TIFFs currently outweighs the risk of replacing these images with a (perhaps) compressed format.

As a side benefit, replacing the TIFF images with alternative representations will facilitate access to the materials - smaller files to manipulate and download and native tool support in browsers and standard OSs.

Access metrics also help to obtain the commitment of the memory institution to preserve data.
Scalability Challenge
The JISC1 collection is high volume (80TB). There are no specific requirements around performance of migration+QA solutions, although it would be desirable to complete processing within weeks rather than months.
Issue champion Peter Cliff (BL)
Other interested parties
Schlarb Sven (ONB)
Possible approaches Migration from TIFF to JPEG2000
Context  
Lessons Learned
Training Needs  
Datasets JISC1 19th Century Digitised Newspapers
Solutions SO31 Preservation Grade TIFF to JPEG2000 Migration

Solutions:

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Title SO28 A heuristic measure for detecting undesired influence of lossy JP2 compression on OCR in the absence of ground truth
Detailed description This solution provides a workflow for detecting undesired influence of lossy JP2 compression on OCR in absence of ground truth. The workflow takes TIFF image instances as input, applies a defined list of JP2 compression parameter values, applies OCR using an open source OCR engine, evaluates the results and creates a final report.
Solution Champion
Schlarb Sven (ONB)
Corresponding Issue(s)
myExperiment Link
http://www.myexperiment.org/workflows/2174.html
Tool Registry Link
 
Evaluation

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