International Image Interoperability Framework (IIIF)

Bij ons leer je de wereld kennen
International Image
Interoperability Framework
(IIIF)
Laurents Sesink, Peter Verhaar,
Ben Companjen. Centre for Digital Scholarship
Lunch talk Centre for Digital Humanities
26-04-2017

Universiteit Leiden. Bij ons leer je de wereld kennen
Centre for Digital Scholarship
Support and facilitate, in collaboration with expert centres, faculties and
(inter)national partners, digital scholarship within the University.
CDS:
• Keeps track of new technology
• Facilitates researchers in the use of new methodologies and technology
• Facilitates the use of state of the art collaboration environments
• Supports new ways to publish and reuse articles, data and research software.
• Has a proactive role during all phases of the research proces (before, during and after
research)
• Collaborates with partners if desirable

Expertise
Support for :
- Open access, copyright and publication advice
- Data management
- Data Science
- Digital Preservation

Activities
• Keep track of, influence and implement relevant policies (university,
national, European)
• Keep track of and use the possibilities of ‘state of the art’ technologies
• Provide information
• Give advice
• Training and Support
• Develop new services

Data Science Support
• Text & Data Mining
• Data & Metadata
• VREs
• GIS
• IIIF
• Database modelling & websites
• Skills building. Data Carpentry

Building up expertise
• Collaboration environments
- Existing activity, VREs, upscaling, extend with other environments (ISSC)
• Repository infrastructure (data and metadata)
- New activity, Proof of Concepts in collaboration with researchers,
exploration of new functionalities (Metadata enrichment, IIIF, Geo)
• Text- & data mining
- New activity, Proof of Concepts, pilots in collaboration with researchers,
possibilities/hurdles data science, software & data carpentry
• Database design, websites
- New activity, testing ground (ISSC), Pilots with researchers
• GIS
- New activity, testing ground Geo service, Pilots with researchers

Special Collections UB Leiden
• International orientation
• Used in research and education by students, teachers and researchers
• Part of our national and international heritage
• Maps, photographs, books,
manuscripts, video, audio, newspapers
journals …....
• More than 4 million objects

New repository infrastructure
3 main principles
• Durable
- In compliance with the requirements of Trusted Digital Repositories
OAIS
Data Seal of Approval
• Visible
- Interoperable with (inter)national portals
OAI-PMH, Persistent Identifiers
• Usable
- Data accessible for digital tools
Science: Domain architecture Research Data
Heritage: DERA (Digitaal Erfgoed Referentie Architectuur –
Netwerk Digitaal Erfgoed)

Redesign of the repository infrastructure
• Replacement of current systems:
- DigiTool, KIT & KITLV repositories
- Dspace
• Needs & Limitations
- Trusted Digital Repository
- Variety of data (digital reproductions, publications, research
data
- Flexible and scalable
- (Inter)national exchange
- Limited capacity for in house developments

Under the ‘hood’

The ‘hood’

Enhance the usability
• Integration with International Image Interoperability
Framework (IIIF)
- UBL is member of IIIF consortium
• Text- and Data Mining
• GeoBlacklight (GIS)
• Linked Open Data (LOD)

Problem statement
Much of the Internet’s image-based resources are locked
up in silos, with access restricted to bespoke, locally
built applications.

Goals
• To give scholars an unprecedented level of uniform and
rich access to image-based resources hosted around the
world.
• To define a set of common application programming
interfaces that support interoperability between image
repositories.
• To develop, cultivate and document shared technologies,
such as image servers and web clients, that provide a
world-class user experience in viewing, comparing,
manipulating and annotating images.

Benefits for end users
• Fast, rich, zoom and pan delivery of images.
• Manipulation of size, scale, region of interest, rotation,
quality and format.
• Annotation. Users can comment on, transcribe, and draw on
image-based resources.
• Compare pages, build an exhibit, or view a virtual collection
of items served from different sites.
• Cite and Share - IIIF APIs provide motivation for persistence,
providing portable views of images and/or regions of images.
•Support for institutional authentication.

The IIIF 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.
{scheme}://{server}{/prefix}/{identifier}/{region}/{size}/{rotation}/{quality}.{format}
https://digitalscholarship.nl/iiif/2/UBLWHS_BPL_14_A_f001v-002r.tif/full/full/0/default.jpg

The IIIF Image API
{scheme}://{server}{/prefix}/{identifier}/{region}/{size}/{rotation}/{quality}.{format}
https://digitalscholarship.nl/iiif/2/UBLWHS_BPL_14_A_f001v-
002r.tif/2000,1800,600,600/full/0/default.jpg
002r.tif/2000,1800,600,600/300,/90/default.jpg
002r.tif/2000,1800,600,600/300,/90/bitonal.jpg

The IIIF Presentation API
The IIIF Presentation API describes how the structure and layout of a complex
image-based object can be made available in a standard manner. The
Presentation API provides an order for these views, the resources needed
to display a representation of the view, and the descriptive information needed
to allow the user to understand what is being seen.
Resource types:
• Manifest: The overall description of the structure and properties of the
digital representation of an object.
• Sequence: The order of the views of the object.
• Canvas: A virtual container that represents a page or view and has
content resources associated with it or with parts of it.
• Content: Content resources such as images or texts that are associated
with a canvas.

Manuscript: Der naturen bloeme.

The IIIF Presentation API
Resource types
• Collection: An ordered list of manifests, and/or further collections.
• Annotationlist: An ordered list of annotations, typically
associated with a single canvas.
• Layer: An ordered list of annotation lists.
• Range: An ordered list of canvases, and/or further ranges.
Resource properties
• Label, metadata, description, thumbnail, attribution,
licence, logo, @ID, @type, format, height, width,
viewing direction, ….........

Behind the scenes. The IIIF Manifest.

Annotations: Der naturen bloeme.

More APIs
IIIF Authentication API 1.0
Provide interoperable access to restricted content through client applications
running in a. web browser.
IIIF Content Search API 1.o
Of the list of content types, textual resources lend themselves to being searched,
either as the transcription, translation or edition of the intellectual content, or
commentary, description, tagging or other annotations about the object.
The scope of the specification is searching annotation content within a
single IIIF resource, such as a Manifest, Range or Collection.

Basic infrastructure components
RepositoryFilesystem
IIIF Image Server
IIIF Image Viewer
AND
/OR
Object
Repository
Metadata
Persistent
Identifiers
Content AND
/OR

Image server
An image server that fully supports delivery of images via URLs
as specified in the IIIF Image API v2.1
• ContentDM
• Djatoka
• FSI server
• IIPImage server
• Loris
• digilib

Image viewing clients
An image viewing client supports viewing of images via URLs
as specified in the IIIF Image API v2.1 and the presentation of
images as specified in the IIIF Presentation API v2.1
• Divajs
• IIPMooViewer
• Mirador
• OpenSeadragon
• LeafletIIIF
• Universal Viewer

Community
The IIIF community consists of a rapidly growing number of cultural heritage
institutions and open source software companies and projects committed to sharing
and displaying image resources across repositories and the web.
http://iiif.io/community/#community-groups-1
Leiden University Libraries is founding member of the IIIF consortium.

Getting started
•Experienced developers: Github.
•A little help: Bodleian Library.
Digital Manuscripts Toolkit
• A lot of help: Centre for Digital Scholarship
- Researcher is in the ‘driver seat’
- Building on the existing digital infrastructure of the UBL
- Activities contribute to the development of new services
- Limited capacity
- Agile project methodology (SCRUM)
- Progress monitored in Trello

• The Digital Musharaf: Virtual reconstruction of
“Writing the Word of God, Part I”, fragments of which
are present at Bodleian Library, Bibliotheque
Nationale de France, Chester Beatty Library, Herzog
August Library
Reconstructing dispersed fragments

International Image Interoperability Framework (IIIF)

Comparing Images
• Archaeology of Reading is project conducted
by John Hopkins Univerity, Universilty
College London and Princeton University
Library
• Aim is to create a corpus of important and
representative annotated texts with
searchable transcriptions and translations

Text retrieval within a
corpus
• Welsh Newspapers Online
http://newspapers.library.wales/

http://puzzle.mikeapps.me/
Puzzles

Combining local and external
images
• E.g. Books in Annotated Books Online can be compared with a
book from the collection at Leiden:
https://digitalscholarship.nl/manifests/UBL_BPL_14A/manifest.j
son

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International Image Interoperability Framework (IIIF)

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