Dear all, You may also be interested in the Open Annotation work [1], which is currently up for AC review towards becoming a W3C working group [2][3]. It is currently one of the largest community groups with 127 participants [4]. We would welcome participation in the working group, assuming that the review is successful :)
It uses the W3C Media Fragments for simple rectangular boundaries on images, and SVG for non-rectangular segments. Another piece of the image annotation puzzle is IIIF, the International Image Interoperability[5] Framework, which has two components. The first is a URL pattern for interoperably manipulating images (region, size, rotation, quality and format)[6], and the second an Open Annotation based description format for building up representations of multi-image objects, be that many images composited together into a single depiction, or many single images such as the pages of a book or slides in a slidedeck[7]. The links below are to the drafts of the next version, which will be finalized in the next couple of weeks. Hope that helps, Rob Sanderson 1. http://www.openannotation.org/spec/core/ 2. http://www.w3.org/2014/annotation/charter/ 3. https://www.w3.org/2002/09/wbs/33280/annowg/ 4. http://www.w3.org/community/openannotation 5. http://iiif.io/ 6. http://iiif.io/api/image/2.0/ 7. http://iiif.io/api/presentation/2.0/ -- Rob Sanderson Technology Collaboration Facilitator Digital Library Systems and Services Stanford, CA 94305
