{{myimage.jpg}}
{{myimage.jpg|this is the alt text for my image}}
[[some link|{{myimage.jpg}}]] - if you click on the image, will goto "some link"
[[http://example.com/|{{myimage.jpg}}]] - same as above: picture links to url

Before we were calling this inclusion or transclusion which would do more than just images, but that is not required for a conforming Creole implementation.

WikiMatrix image syntax comparison

See also all markup