Surfer Webinar: Georeference Imagery and Recreate Contours in Surfer 14 This webinar recording goes over the following topics: Georeferencing an image. Digitizing the contour lines on the georeferenced image. Creating an editable contour map from the digitized contour lines. Length: 27:39 Have more questions? Submit a request 0 Comments Please sign in to leave a comment.