Having issues leveling an image from Insta360 v4

[Bill Banks]

I had posted this in a response form something form some time ago but it did not seem to post. I am attempting to level a dual image 360° image. See two screenshots. One is the control point section with #25 & #23 as horizontal control points and #24 as a vertical. The leveling results are atrocious. Please help.

Bill

[PTGui Support]

Hi Bill,

To level a panorama, you generally select the same image in both panes
in the control points tab.

Then find a vertical feature, and add a vertical line control point pair
there. The two points of the control point pair should be at different
positions on the vertical line.

See the video tutorials, part #8:
https://ptgui.com/video

So in your example it doesn't work because you've selected two different
images in the CP tab, and placed a control point in the red masked area
which is not correct.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[John Houghton]

Bill, You can also level an already stitched 360x180 equirectangular image by simply loading the image into PTGui and setting a few vertical line control points, followed by running "Level panorama" from the Edit menu on the Panorama Editor window.  For full 360x180 panoramas, horizontal line control points are generally only used on the natural horizon (when visible) to level and straighten it.

John