Consider searching for images from public domain repositories or images with creative commons (CC) licenses. Open source and CC images are free to use and share.
See the Finding Images tab for more information.
Reverse image web searching tools may be able to answer this question.
Drag and drop the image file into one the following reverse image search tools, then review the results.
The TinEye Reverse Image Search allows you to sort your search results. The search sort options include: best match, most changed, newest, oldest and biggest image. Selecting oldest is a pretty effective way to look for the original image.
A credit line under a visual is the equivalent of an in-text citation. It provides acknowledgment to the creator and provides enough information to point the reader to the full reference. The reference list is the complete list of all the sources you have used and cited in the creation of your document.
Surfer walking out on icy water to the waves near Halifax. Koreski. (n.d.)
Koreski, J. (n.d.). Surfer walking out on icy water to the waves near Halifax [Photograph]. All Canada Photos/ Universal Image Group. Retrieved from Encyclopedia Britannica ImageQuest database. http://quest.eb.com/#/search/surfer-halifax/1/167_4007210/Surfer-walking-out-on-icy-water-to-the-waves-near-Halifax
It is acceptable to create a separate image credit list. If you are combining image references and text references into one reference list, include the format as part of the title information. For example: Surfer walking out on icy water to the waves near Halifax [Photograph].
Royalty Free does not mean no cost.
A royalty based fee schedule requires ongoing payment based on the number of times the content is used.
Royalty Free means a single payment (the permission fee) covers multiple use of the image without additional payments. It allows for more than one use of the image for the fee paid.
You pay for the image, but it is free of royalties or ... royalty free.