Exercise – 20 / Geo Referencing of Google Earth Images in QGIS Georeferencing of Aerial Image. In the exercise Georeferencing of Google Imagery will be covered as the basic process of georeferencing in QGI S (Process for Georeferencing of Topo Sheets and Scanned Maps remains the same) . That method involved reading the coordinates from google images / topo sheets / scanned map and inputting it manually. Many times, though you may not have the coordinates printed on your map, or you are trying to georeference an image. In that case, you can use another georeferenced data source as your input. In this exercise, you will learn how to use existing open data sources in your georeferencing process. How to download image from Google Open Google earth and search for the area to save image. Choose Tools → Options from Menu bar Figure 184 - Google Earth Option Window Select Universal Transverse Mercator from Show Lat/Long Select Meters/Kilometers from units of measurements Cl...