choose_gcp              Function to choose the Ground Control Point
                        (GCP) on an image
extract_coords          Extract coordinates
find_gcp_coords         Find the coordinates (longitude and latitude)
                        of the ground control points (GCPs) in a given
                        image.
geom_tissot             Add Tissot's indicatrix to a map
georeference_img        Georeference an Image using Ground Control
                        Points (GCPs)
suggest_crs             Suggestions for map projections depending on
                        the extent
