Wednesday, September 07, 2011

A simple JP2 file structure checker

A simple JP2 file structure checker. Johan van der Knijff.  National Library of the Netherlands (KB). Johans blog. Open Planets Foundation.  1 September 2011.
The KB is planning to migrate a collection of  TIFF images to JP2. One major risk of such a migration is that hardware failures during the migration process may result in corrupted images. Others have found that corrupted, incomplete JP2 files can still be see as "well-formed and valid" by JHOVE.  This tool was written to detect incomplete code streams in JP2 files.  There are links to the source code of jp2StructCheck, some documentation, and a small data set with some test images. This will be an important tool for digital preservation.

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