Introducing MiradorInteroperability in practice: a cross-repository image viewer

DLF Fall Forum, November 2013

Stuart Snydman, Stanford UniversityAndrew Winget, Stanford University

Michael Appleby, Yale UniversityBenjamin Albritton, Stanford University

Christopher Jesudurai, Stanford University

Imagine you are a manuscript scholar

Beinecke MS 310, New Haven, CT BNF Français 1728, Paris, France

Ms. lat. oct. 121, Collegeville, MN Walters MS 34, Stanford, CA

Imagine an image viewer…

that can show content from all four repositories…

and let you compare…

and inspect in detail.

Say hello to Mirador

Mirador is a multi-window image viewing and comparison workspace, that is…

• Open source• Community driven• Javascript• Extensible• Interoperable

And works with any IIIF-compatible repository

Interoperability

Image and metadata sharing across institutions and collections.

=

International Image Interoperability Framework

http://iiif.io

ARTstor Biblissima

Bodleian LibrariesBritish Library

Codices Electronici Sangallenses Harvard University

Johns Hopkins University Los Alamos National Laboratory

Stanford University Yale University

Demo

Digitally Enabled Scholarship with Medieval Manuscripts

1. An Edition of the First Recension of Gratian’s Decretum– Professor Anders Winroth, Professor of History– … and a team of graduate assistants

2. A Literary History of the English Book of Hours– Jessica Brantley, Professor of English

3. Creating English Literature, ca. 1385-ca. 1425– Alastair Minnis, Professor of English– Holly Rushmeier, Professor of Computer Science

4. Manuscript Analysis of Books of Hours– Holly Rushmeier, Professor of Computer Science

Creating a Critical Edition• Scholars compare manuscripts in detail to establish the Latin text

• Manuscripts are scattered throughout Europe (and beyond): Admont, Barcelona, Florence, Paris, St. Gall, etc.

• Team’s previous working method was to use online viewers and/or local copies of images

• Mirador is perfectly suited to this use case

• Viewer instance configured for use by the project team

Viewing Books of Hours

• Investigation of the culture of reading shaped by these books and vernacular literature in the later Middle Ages

• About 800 manuscripts from late medieval England

• Each contains a standard set of Latin prayers, but also other texts, illustrations, marginal notes

• Mirador facilitates comparison of manuscripts

Creating English Literature, ca. 1385-ca. 1425

• Study of texts by leading authors of the day – namely, Chaucer, Gower, Langland and Hoccleve

• How were they produced, who produced them, and where?

• Non-invasive scientific analysis of the inks and pigments used by scribes and decorators in England (especially London)

Multispectral Images

• Each band is processed into a black and white TIFF

• Viewer presents the user with a choice of alternate images for the page

Multispectral Images in Mirador

Manuscript Analysis of Books of Hours

• Holly Rushmeier, Professor of Computer Science

• Develop custom algorithms to segment the manuscript images into areas of text and areas of individual illustration

• Detect text layout

• Analyze the image contentImage from: ATHENA: Automatic Text Height ExtractioN for the Analysis of old handwritten manuscripts, R. Pintus, Y. Yang, and H. Rushmeier, Conference Paper: Digital Heritage 2013 (2013)

Detecting Significant Features of Manuscript Materials

• Detect text orientation and de-skew images

• Detect main text block of the page

• Automatically determine the line height of the text

• Detect non-text areas (image vs. text)

• Features will be viewable as annotations in Mirador

• Mirador will allow rapid feedback of results to humanities scholars

Image Annotations

Image Annotations

Implementing the IIIF Image API– Started project with no scalable

image support

– Deployed Djatoka image server

– Developed IIIF protocol adapter

– In production for about 6 months

– Easy!

– Friendly, helpful IIIF community

Looking Ahead

8 manuscripts, 6 repositories

Mirador in 3 Easy Steps

Step 1: Deploy an IIIF compliant image server

Step 2: Publish objects using IIIF metadata

Step 3: Deploy Mirador

ContentDM

Djatoka

FSI Viewer

IIPImage Server

Loris

Luratech

What’s next?

Mirador 1.0• Image Viewing

– Basic zoom and pan– Thumbnail view– Scroll view– Metadata view– Image choice

• Comparison Features– Configurable window environment– Locked zoom– User-configurable size and scale

• Annotations– Annotation viewing for externally created annotations

• State– Saved state of workspace

• Interoperability– Ability to display content from multiple hosting sources

Transcription viewing

Multiple text representations

Workspace Sharing

Other media types

*Image/video credit: The British Library

Annotation makingAnnotate*

*Image credit: annotorius.github.io

Get involved

• Learn more: iiif.ioiiif.io/mirador

• Discuss: iiif-discuss@googlegroups.com

• Contribute: github.com/iiif/Mirador

• Give it a try

Acknowledgements

• Ben Albritton, Stanford University• Christopher Jesudurai, Stanford University• Rob Sanderson, Los Alamos National Labs• Tom Cramer, Stanford University

Thank you