International Image Interoperability Framework

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IIIF logo International Image Interoperability Framework logo.png
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The International Image Interoperability Framework (IIIF, spoken as 'triple-I-eff') defines several application programming interfaces that provide a standardised method of describing and delivering images over the web, as well as "presentation based metadata" [1] (that is, structural metadata) about structured sequences of images. If institutions holding artworks, books, newspapers, manuscripts, maps, scrolls, single sheet collections, and archival materials provide IIIF endpoints for their content, any IIIF-compliant viewer or application can consume and display both the images and their structural and presentation metadata.

Contents

There are many digitisation programmes that have resulted in a particular collection’s content exposed on the web in a particular viewer application, [2] but these various collections have not typically been interoperable with one another, [3] and end users or institutions cannot substitute a viewer of their choice to consume the digitised material. The IIIF aims to cultivate shared technologies for both client and server to enable interoperability across repositories, and to foster a market in compatible servers and viewing applications. [4]

Image API

The IIIF Image API specifies a web service that returns an image in response to a standard HTTP or HTTPS request. The URI can specify the region, size, rotation, quality characteristics and format of the requested image. A URI can also be constructed to request basic technical information about the image to support client applications. [5]

One major use of an Image API endpoint for a given high resolution source image is to allow clients to request low resolution tiles for use in a Deep Zoom style viewing tool such as OpenSeadragon. [6]

Presentation API

The IIIF Presentation API specifies a web service that returns JSON-LD structured documents that together describe the structure and layout of a digitized object or other collection of images and related content. [7]

An institution would publish a Manifest (a JSON-LD document) that describes the structure of each book, artwork, manuscript or other artefact. The manifest contains references to Image API endpoints. A viewer application consuming the manifest can produce a coherent user experience for the artefact by implementing features such as page by page navigation, deep zooming into images and annotations on images.

Search API

The IIIF Search API allows for "searching annotation content within a single IIIF resource, such as a Manifest, Range or Collection." [8]

Example use case

A use case for IIIF would be to allow a user to view a manuscript that has been dismembered in the past, with its leaves now scattered across various collections. [9] If each collection exposes its digitized images via the Image API, then a scholar can construct and publish a manifest that digitally recombines the leaves to present a single coherent user experience for the manuscript in any compatible viewer.

History

The Image API was proposed in late 2011 as a collaboration between The British Library, Stanford University, the Bodleian Libraries (Oxford University), the Bibliothèque nationale de France, Nasjonalbiblioteket (National Library of Norway), Los Alamos National Laboratory Research Library, and Cornell University. [10] Version 1.0 was published in 2012.

Version 1.0 of the Presentation API was published in 2013 and of the Search API in 2016.

Partial list of software that supports IIIF APIs

Image Servers

Viewers / client libraries

See also

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References

  1. ↑ "Technical Details – IIIF – International Image Interoperability Framework" . Retrieved 9 November 2016.
  2. ↑ "Medieval Manuscripts on the Web (digitized manuscripts)" . Retrieved 9 November 2016.
  3. ↑ "Presentation on "Transcending Silos" at 2012 Digital Library Federation Forum". Archived from the original on 2015-04-02. Retrieved 2015-02-16.
  4. ↑ "Redirecting…" . Retrieved 9 November 2016.
  5. ↑ "Image API 2.1 — IIIF – International Image Interoperability Framework" . Retrieved 9 November 2016.
  6. ↑ "IIIF Tile Source – OpenSeadragon" . Retrieved 9 November 2016.
  7. ↑ "Presentation API 2.0 — IIIF – International Image Interoperability Framework" . Retrieved 9 November 2016.
  8. ↑ "IIIF Content Search API 1.0 — IIIF – International Image Interoperability Framework" . Retrieved 9 November 2016.
  9. ↑ Mauk, Ben (6 January 2014). "Scattered Leaves". The New Yorker. Retrieved 9 November 2016.
  10. ↑ "The International Image Interoperability Framework (IIIF): Laying the Foundation for Common Services, Integrated Resources and a Marketplace of Tools for Scholars Worldwide". 8 December 2011. Retrieved 9 November 2016.
  11. ↑ "Cantaloupe Image Server :: Home". cantaloupe-project.github.io.
  12. ↑ "dbmdz/iiif-server-hymir". October 29, 2020 – via GitHub.
  13. ↑ "loris-imageserver/loris". GitHub . Retrieved 9 November 2016.
  14. ↑ Pillay, Ruven. "IIPImage" . Retrieved 9 November 2016.
  15. ↑ "digilib – The Digital Image Library –" . Retrieved 9 November 2016.
  16. ↑ "jronallo/djatoka". GitHub . Retrieved 9 November 2016.
  17. ↑ "OpenSeadragon" . Retrieved 9 November 2016.
  18. ↑ "ProjectMirador/mirador". GitHub . Retrieved 9 November 2016.
  19. ↑ "Digirati – Wellcome Player". Archived from the original on 22 October 2017. Retrieved 9 November 2016.
  20. ↑ "UniversalViewer/universalviewer". GitHub . Retrieved 9 November 2016.
  21. ↑ "IIIF for images in cultural heritage" . Retrieved 9 November 2016.
  22. ↑ "mejackreed/Leaflet-IIIF". GitHub . Retrieved 9 November 2016.
  23. ↑ "ruven/iipmooviewer". GitHub . Retrieved 9 November 2016.
  24. ↑ "armadillo-systems/inquire". GitHub . Retrieved 3 February 2017.
  25. ↑ "CONTENTdm responsive website image viewer". OCLC. Retrieved 18 November 2019.
  26. ↑ "Turning the Pages IIIF" . Retrieved 28 March 2023.
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