Citing an image such as a picture, photograph or clip art can be slightly different than citing a figure or table from a website. You must always check the copyright status of any image you use. Use of many images is only granted if you pay to use the image and if you are given permission.
When searching for images to use in your work, it is a good idea to use an image that is not copyrighted, in the public domain or has a Creative Commons license. Creative Commons (CC) is a non-profit organization permitting the sharing and use of creativity and knowledge through free legitimate means. You can use CC-licensed materials as long as you follow the license conditions. See https://creativecommons.org for more information about creative commons and a search engine for content available to reuse. Depending on the license, you may need to acknowledge the image creator and the license with which they've allowed you to use the image.
To attribute sources that you reuse under a Creative Commons license, you generally must at least include:
Figure 2. Soda Bread. (Tacke 2015). CC BY 1.0.
Be careful when using Google Images as many of the images there are subject to copyright restrictions and are not free to use. All images on the Internet are governed by copyright law and it is your responsibility to find the copyright permissions for each image you use. To obtain images with Creative Commons licenses, proceed as follows:
Figure 1. Galway Bay sunset. (Zhang 2017). CC BY 3.0.
The following are all sources of copyright free images -