QGIS and GIMP for Enhancing Historic Maps

Adam Cox, Louisiana State University
To use a scan of a historic map as an overlay or basemap you must first georeference it, but often that is only the first step. In many cases you’ll also need to perform some image editing-to create a proper collage from a map series, or to remove the background color. In this talk I’ll share the workflow that I use to achieve these visualizations in a flexible, reusable, and fully open source way.

[@user-jn1te2hn5j]

Very helpful tutorial！Thks so much！