A ground control point (GCP) is a location of the surface of the Earth (e.g. a road intersection) that can be identified on the imagery and located accurately on the map (i.e. the reference dataset). Two distinct sets of coordinates are associated with the GCP: image coordinates in i rows and j columns, and map coordinates (e.g. x, y measured in degrees of latitude and longitude or as specified by the spatial reference system).
Create a set of ground control points tying image coordinates to map coordinates of a reference dataset using a digital reference dataset or in-situ GPS measurements
Planned