I just started working with qgis and I have two maps of a town. On the one map buildings are outlined by Points, like this.
And the other map is just black with White Buildings. like this.
My task is now to create a layer in which the buildings are polygons. I looked up some questions here and found some interesting stuff, but it never really worked for me. I tried some tools in qgis, like lines to Polygons, but it never worked.
Can you think of a way to auto-create a layer like this or should I just do it by hand?
Of course I'm asking this because it's a very big amount of data and I would rather not do it by hand.
This is what the identifier gives me. "Kanal" is german for "channel" or "band" I think.