The Australian Copyright Act requires that creators of works be named (acknowledged).
Moral rights require you to attribute an image, unless otherwise instructed by the image's licensing agreement, or the terms or conditions of provided by a website or database.
When attributing a work under a CC licence you should:
- Credit the creator;
- Provide the title of the work;
- Provide the URL where the work is hosted;
- Indicate the type of licence it is available under and provide a link to the licence (so others can find out the licence terms); and
- Keep intact any copyright notice associated with the work.
The following is an example of attributing a creative commons image. See the Creative Commons Australia guide for more examples.

photo credit: blavandmaster Waiting for Spring via photopin (license)