A hands-on guide to Mirador Annotation Editor, a plugin that adds annotation creation and editing to the Mirador 4 IIIF image viewer, from creating an annotation to exporting it, using the official demo.
A hands-on guide to IMMARKUS, an open-source tool for adding semantic annotations to IIIF images in W3C Web Annotation format, from first launch to standards-based export, using the Hyakki Yagyo scroll from the University of Tokyo Digital Archive.
I aligned IIIF 3D Viewer with the IIIF 3D Technical Specification Group's Presentation API 4 draft (Scene / PointSelector / WKTSelector / PerspectiveCamera). Existing manifests authored against IIIF Presentation 3 with a project-local 3DSelector / camPos extension are funnelled through a runtime converter so the rest of the pipeline only deals with v4. This post records the diff, the conversion rules, and the implementation outline.