In this paper, an image-based approach for automatic measuring the four corner points in the map frame of old topographic maps is described. The maps belong to the »Kartenforum« of the portal »Deutsche Fotothek«, a comprehensive collection of old maps at the Sächsische Landesbibliothek – Staats- und Universitätsbibliothek Dresden (SLUB). After describing the image processing algorithm the corner points of nearly 6,000 maps are determined automatically. Then the georeferencing parameters are calculated using four overdetermined approaches for the transformation. The results are statistically analyzed. Subsequently these qualities are compared with the results obtained by Bill and Walter (2015) based on a crowdsourcing solution.