Georeferencing in GIS
What will you learn? : What is Georeferencing? Types of Georeferencing, Georeferencing in GIS, Georeferencing in QGIS, Georeferencing in ArcGIS.
Tutorial Contents
What is Georeferencing?
Georeferencing is a Coordinate system of a digital map to a ground system of Geographic Coordinates. A Georeferenced image has been to a known Earth Coordinate system, that is Latitude (Y) and Longitude (X).
Georeferenced refers to the process of assigning map coordinates to image data. The image data may already be projected on to the desired plane, but not yet referenced to the proper coordinate system. Image-to-image rectification involves georeferencing only if the reference image is already Geo-referenced.
Why Georeferencing Important
- Locate exact area
- Evaluate spatial characteristics and relationships
- Explore information in a spatial context
Types of Georeferencing
- Image Georeferencing
- Map/Ground Georeferencing
- OSM Georeferencing
Georeferencing in GIS
The term is commonly used in the geographic information systems (GIS) field to describe the process of associating a physical map or raster image of a map with spatial locations. In this case, GIS Software helps you rectified or unreferenced image to convert rectified or referenced image.
