readjust horizon height

[Caetano Veyssières]

Hugin wrongly guessed the horizon height and put it too low (see attached image). When I drag the panorama up using the drag tool it obviously distorts it.

So I export an equirectangular projection and move the image up in GIMP to get the horizon centered but I imagine it doesn't preserve the scale of objects in the photos.

So is there a way to drag the panorama in Hugin so the horizon gets on the equator of the sphere and stays straight, while preserving the panorama's real scale?

[panostar]

Caetano, Hugin doesn't guess the horizon height.  If your screenshot is of the original stitch project, it may be that the problem is an inaccurate lens fov value.  If that's a straight road, then the hfov of the panorama looks like it is too small, since the actual view appears to be close to 180 degrees.  If you have a previous successful stitch, then maybe you could use lens parameters from that project in this new project.

John

[Caetano Veyssières]

You were right about the Hfov. I don't know where it got its value from (59.4) but I corrected it to 63.3 and the result came to match what I wanted.
I also noted that I shouldn't run the geometry calculation using any option that includes view, as it re-changes the Hfov.