Image does not comply to technical profile

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Institutional policies or digitisation guidelines may impose various constraints on the technical characteristics of preservation and access images. These constraints can be defined in a technical profile. If images don't conform to this profile, this may lead to a variety of problems.


  • Images may not meet quality requirements (e.g. lossy compression where lossless is required)
  • Performance problems in access environment (e.g. progression order that is not optimised for typical viewing use cases)
  • Interoperability problems (e.g. resolution that is not in expected header fields may lead to loss of this information after migration and failure of OCR software)


Using a combination of Jpylyzer and [Schematron], it is possible to automatically assess a JP2 against a technical profile. The procedure is described in this blog. Test data are provided there as well.


  • Carefully consider the technical requirements that your JP2s should meet, and define a profile
  • Translate this profile to a set of Schematron rules
  • Use Jpylyzer and [Schematron] to determine if each JP2 meets the requirements

Example files



Automated assessment of JP2 against a technical profile

jp2 jp2 Delete
formatissue formatissue Delete
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