There are many ways to customize and enhance maps. One popular enhancement is including images such as satellite imagery, aerial photographs, or historical maps. Images provide additional information and context for the map. In order to spatially relate the image with the other geographic data sources in a map, the image must be georeferenced.
Georeferencing an image is the process of assigning real-world coordinates to each pixel of the image. The latest release of Surfer can georeference images using three or more control points. Below I will step you through some of the main georeferencing features, but for more detailed instructions on how to georeferenced an image of your own, check out our knowledge base article, How can I georeferenced (assign coordinates to) an image base map in Surfer?