Overview
The Omeka S IIIF Server module can automatically generate IIIF collections (a grouping of IIIF manifests into one) in addition to IIIF manifest files.
https://omeka.org/s/modules/IiifServer/
This article explains how to use this IIIF collection feature.
Preparing Data (Item Sets)
In Omeka S, there is a unit called “item sets” for managing groups of items. For example, in this case, we create three item sets: “tei”, “iiif”, and “oss”.
The relationship between the registered Omeka IDs and titles is shown in the table below.
| Omeka ID | Title |
|---|---|
| 1266 | tei |
| 1265 | iiif |
| 1264 | oss |
Then, associate multiple items with each item set. For example, associate 23 items with the item set “oss”.
For the association method, you can either assign an item set from individual item edit pages as follows,
or select multiple items from the item list screen and change the item set for multiple items at once using the batch processing form at the top of the screen.
Single Collection (Item Set)
As a result of the above, for example, the IIIF collection consisting of IIIF manifests for items associated with the item set “oss” can be obtained from the following URL.
https://shared.ldas.jp/omeka-s/iiif/2/collection/1264
The IIIF collection in IIIF Presentation API v3 can be accessed from the following (change 2 to 3).
https://shared.ldas.jp/omeka-s/iiif/3/collection/1264
Here is an example displayed in Image Annotator created by Masahide Kanzaki.
And here is an example displayed in Mirador 3.
Furthermore, here is an example displayed in “Self Museum” created as part of the Cultural Japan project.
Multiple Collections (Item Sets)
By providing a URL like the following, you can create an IIIF collection composed of multiple IIIF collections (item sets).
https://example.org/iiif/set/:id,:id,:id,:id
For example, the following URL.
https://shared.ldas.jp/omeka-s/iiif/set/1264,1265,1266
Summary
As introduced in this article, by using the Omeka S IIIF Server module, you can automatically generate IIIF collections based on Omeka S item sets, in addition to generating IIIF manifest files, with support for both IIIF Presentation API v2 and v3.
By automatically generating IIIF collections, it is also beneficial that they can be loaded into other applications that support IIIF collections, such as Self Museum.
I hope this article is helpful for utilizing IIIF data with Omeka S.