Semantic Image Annotator

The repository contains the Semantic Image Annotator extension for Semantic MediaWiki. The extension provides a plugin for capturing Image Annotations in Semantic MediaWiki of Uploaded Image Files.

Click here for a Demo.

Table of content

• Prerequisites
• Installation
• Annotator setup
• Usage
  • Create Annotations
  • Edit Annotations
  • Delete Annotations
  • Query Annotations
• License
• Acknowledgements
• Links
• Related Extensions

Prerequisites

• MediaWiki must be installed
• Semantic MediaWiki must be installed
• PageForms must be installed

Installation

• Download and extract the repository
• Place the extracted folder in your extension folder of MediaWiki
• Add the following code at the bottom of your LocalSettings.php:
  wfLoadExtension( 'SemanticImageAnnotator' );
• To users running MediaWiki 1.24 or earlier: Add the folloding at the bottom of your LocalSettings.php:
  require_once "$IP/extensions/SemanticImageAnnotator/SemanticImageAnnotator.php";

Annotator Setup

• Go to Special Pages and Click on Semantic Image Annotator under the Group Annotation
  • Remark: Only Users with sysops rights are allowed to access the page.
• Click on the Install button to setup Semantic Image Annotator and refresh the Special Page
• You can now Link PageForms to Annotation-Categories by using the Table on Special Page.

Usage

Create Annotations

• Go to an uploaded Image File (In the NameSpace 6)
• On the top appears the Annotate Image Button. Click on it to start the Annotation Mode
• Afterwards you can select an area. Afterwards appears a popup
• You can enter a Comment to the Annotation and select an Annotation-Category (Linked by using the Special Page)
  • Remark: If the user has no permission to create/edit pages. Then the popup is disabled.
• A popup appears to enter additional information, based on the selected PageForm
• Click on save to store the annotation.
  

Edit Annotations

• Mouseover an annotation. A popup appears. Click on the Edit button.
  

Delete Annotations

• Mouseover an annotation. A popup appears. Click on the Delete button.

Query Annotations

• The annotations are stored in a structured way.
• Every annotated Image has its own overview page (Annotation:PAGENAME) which lists all annotations.
• The following figure shows the query for listing all Pages for a certain Wiki page.
  

License

The Semantic Image Annotator is currently under the MIT License.

Acknowledgements

The idea of the Semantic Image Annotator is based on a by Felix Obenauer. For the Semantic Image Annotator is the JS Library annotorious used. Thank you to Roger Appleby and Karsten Hoffmeyer for supporting the extension and provding bug fixes.

Links

• MediaWiki Extension Page
• AIFB

Related Extensions

• Semantic Text Annotator
• Planned: Semantic Video Annotator
• Planned: Semantic PDF Annotator