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(This is how Imaging Services formats and organizes data to share with project partners.)
Providing digital images and associated metadata to external partners (e.g., funders, commercial publishers, other cultural heritage organizations)
Imaging Services will work with Harvard libraries, museums, and archives to share digitized content with external partners.
However, Imaging Services will not:
- Produce images or associated metadata files in formats, or to special format-encodings or technical specifications required by external partners when these specification differ standard workflows developed to make digital content that is to be stored by Library's Digital Repository Service.
- Responsibilities for transferring data, converting data, and the provision of any supplemental data need to satisfy external partner requirements are to be borne by the owning repository that has contracted with Imaging Services.
Description of files
- Image files are encoded in compliance with the JPEG2000 standard
- Data compression: irreversible 9-7 wavelet transform for lossy compression, or reversible 5-3 wavelet transform for lossless compression.
- Photometric interpretation:
- RGB (color), 8-bits per channel, embedded sRGB ICC profile.
- Grayscale, 8 or 16-bits per channel.
- Structural metadata files (optional) conform to the METS standard and Harvard's METS profile for page-turned objects.
- MARC record files (optional) are in MarcXML or MODS format.
- Packaging tag files generated by the packaging application (Bagit) describe the package.
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