Images obtained off the web or scanned from a print source, that you use in a presentation or research paper, must be cited.
Exceptions to the need to provide a citation to an image include royalty free clip art, such as the clip art available in Microsoft Word or Powerpoint. To credit a photo from these sites, always check the terms and conditions for the individual photo, if available, and link or mention the source institution (Image Gallery, Artefacts Canada, etc.) and the creator, if given, where the image appears in your document.
The Copyright Act does not specify any citation requirements beyond the source of the material used and, if available, the name of the creator (ie: Creator, Source). While there is no legal requirement to attribute works in the public domain to their creator(s), doing so is good academic practice. Generally, image citations should meet the same requirements as a text citation; that is, a reader should be able to find the source of the image, and the image itself, based on the information in the citation.
If permission to use the image is obtained from the copyright holder, the copyright holder may require a particular citation style or that certain information be included. Examples of where permission requirements go beyond the basic copyright requirements are licensed library databases, creative commons licenses, and individual use agreements.
To cite image sources in a bibliography, reference list or works cited list, consult he guides for MLA, APA, and other styles.
Include the citation as close to the image as possible, within the limitations of the medium.
As a general rule, the following elements should be included in the citation
Other information that might be needed, depending on where you found the image:
For information on how to cite images in MLA style, please visit the MLA citation style guide
For examples of citations from the UBC Citation Guide, click here.
Some helpful examples from SFU's citation guide.