Images on a MediaWiki wiki are designed to link to the description page, so that licensing information, upload history, contributors, and full resolution versions are immediately available to the user when he or she clicks an image. In fact, MediaWiki is designed to prevent manual manipulation of images in wikicode which may circumvent this operation: The <img> tag is specifically not whitelisted in the Sanitizer, nor is the background-image CSS attribute.
However, there are several workarounds for those that require them.
In Stadtwiki the Extension ImageMap is used, if a linked image is really needed. An example can be found in Region Karlsruhe.
- Extension:ImageMap - advanced image shape-link extension, uses the html USEMAP features (xml tag)
- Wikipedia-Toolserver for generating image maps easier