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+--- Thread: Boundary warp (/Thread-Boundary-warp)
Boundary warp - msdobrescu - 07-03-2020
Hello, I make panos with Hugin. The results boundaries are not rectangular.
I need to crop them. Is there a deformation technique to get the most of them, similar to the boundary warp tool in Photoshop?
Note, I have added a feature request here: https://gitlab.gnome.org/GNOME/gimp/-/issues/4679, but until somebody implements it, if somebody will, I need an workaround. I am sure it is not trivial.
Thank you.
RE: Boundary warp - rich2005 - 07-03-2020
Quote:I need an workaround. I am sure it is not trivial.
I am sure it is not trivial either. Whatever is used can only extrapolate from what is there. You could try the resynthesizer + heal transparency plugin(s)
Using linux? Depends on the distro but good chance of this one working https://www.gimp-forum.net/Thread-Gimp-2-10-Resynthesizer-Linux?pid=11261#pid11261
A quick render with Hugin, a cylindrical projection to give a curved border. Then Filters -> Enhance -> Heal Transparency
Before: https://i.imgur.com/3bIFmZh.jpg
After: https://i.imgur.com/k4soZgM.jpg
As you see not perfect, especially the left side. All very much depends on the image.
RE: Boundary warp - akovia - 07-03-2020
(07-03-2020, 12:17 PM)msdobrescu Wrote: Hello, I make panos with Hugin. The results boundaries are not rectangular.
I need to crop them. Is there a deformation technique to get the most of them, similar to the boundary warp tool in Photoshop?
Note, I have added a feature request here: https://gitlab.gnome.org/GNOME/gimp/-/issues/4679, but until somebody implements it, if somebody will, I need an workaround. I am sure it is not trivial.
Thank you.
You could also try using the Cage Transform tool and/or some strategic cropping, but I would suggest the heal transparency tool the same as @rich2005.
I would add a couple notes though.
- If you are not happy with the results, you can try again and will get some different results. (also tweak the sampling area as needed)
- After an initial try with heal transparency, just select the areas that didn't turn out like you wanted and redo just those parts.
- Combine this with the heal/clone tools to take care of the finer details.
[attachment=4615]