Hugin (et al.) vertically squeezes my long panorama
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
hugin (Ubuntu) |
Fix Committed
|
Undecided
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Unassigned |
Bug Description
I have a long horizontal panorama (16 photos), that I took with a tripod.
I opened the images, and told Hugin to align them
I used the Move/Drag tab to slightly rotate the image to be more horizontal.
I used the Crop tab to approximately match the top/bottom/
I tell Hugin to Create Panorama.
As it is printing its output to the progress window, I suddenly notice that the bounding box of the crop is extending at least 100% below the line where I had set it.
When I looked at the image, there was a large area of black below the image,
My images are 4000 wide by 3000 tall. Taken on a tripod, I would expect the height of the resultant panorama to be somewhere around 3000.
Indeed, in GIMP, the total height of the image is 3013 (even closer to 3000 than I expected). However, that includes the area of black at the bottom. The actual height of the image is somewhere in the neighborhood of 1700. Thus Hugin has reduced the height of my image to about half.
The image itself does not appear to be flattened, and it appears to be complete, so I suppose that it also has been reduced the same amount horizontally. 16 images times 4000 pixels means that the upper bounds for the width would be 64000 pixels, and the actual width is 30000.
If we assume that I overlapped by an average of 25%, I would expect it to be about 48000.
I am sure I did not overlap by over 50% (30000/64000 = ~.47).
"Downscale final pano" 100 "percent of max. width"
I have tried to find out where the log files for the stitching are, but have been unable to do so so far. The clipboard only shows the alignment log.
Perhaps there are command-line options to enblend/enfuse that will let me direct the log output to a file of my choosing, but a quick check of the docs (too quick, likely...) does not appear to show options for that. I don't know if one can use re-direct (">") output on the "executable" or "default arguments" lines in the preferences, but I can try that...
I could also perhaps start Hugin from the terminal, and capture output that way...
If anyone has suggestions, either how to stop Hugin from shrinking my panorama, or how to see the output to better debug the problem, please let me know.
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scott@scott-
Linux scott-Asus-
scott@scott-
Ubuntu 17.10
artful
scott@scott-
QLubuntu
scott@scott-
hugin:
Installed: 2018.1.
Candidate: 2018.1.
Version table:
*** 2018.1.
500 http://
100 /var/lib/
2017.
500 http://
(I was using 2017.0.0~rc2+dfsg-2 (Standard for [L]ubuntu 17.10) originally, but noted that
elsewhere, a more recent version was available, and thought that perhaps the "bug" (?) had been fixed there. Alas, no...
Hugin itself prints "2018.1.
scott@scott-
enblend:
Installed: 4.2-2build2
Candidate: 4.2-2build2
Version table:
*** 4.2-2build2 500
500 http://
100 /var/lib/
scott@scott-
enfuse:
Installed: 4.2-2build2
Candidate: 4.2-2build2
Version table:
*** 4.2-2build2 500
500 http://
100 /var/lib/
I note that this PPA has a more recent enblend and enfuse, but that it is apparently now one package, and apparently also is not available for "artful"...
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I don't know yet, if enblend/enfuse are messing with the image dimensions, or they are working correctly with incorrect information sent from Hugin...
Any ideas?
Can you provide the pto file which shows the described behaviour?