Georeferencing raster data
According to the online ESRI GIS Dictionary, the georeferencing process converts the coordinates of a raster to a known coordinate system in order to be viewed, queried, and analyzed with other spatial datasets you might have. The raster's Cartesian coordinate system is considered as a source (arbitrary) system The known or reference Cartesian coordinate system is considered as a destination (fixed) system.
In this recipe, you will follow the general concepts from the following diagram:
Note
For theory and worked examples about coordinate transformations in two dimensions and least squares estimation, please refer to:
- Principles of Geospatial Surveying, Artur L. Allan, Whittles Publishing, 2007; chapter Coordinate Transformations, p.41-58 and chapter Least Squares Estimation, p.88-115
- Observations and Least Squares, Eduard M. Mikhail, IEP-A Dun-Donnelley Publisher, 1976; subchapter Coordinate transformations, p.184-212
Getting ready
You will georeference a raster...