A friend of mine recently published a panorama that he had stitched
from first principles with Mathematica. It didn't look bad:
https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20240608/small/tapiola-kirma.jpeg
Before you go looking at these individual links, I have a summary at
the bottom of this message.
But I thought it could be done better with Hugin. I was wrong.
First, I ran it through my scripts, which effectively run pto_gen,
cpfind, celeste_standalone, cpclean and autooptimiser. The result was
very uneven:
https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20240608/small/tapiola-optimized.jpeg
OK, I thought that maybe I had something in my scripts that wasn't
doing the right thing, so I tried running it in a vanilla version of
Hugin without any ~/.hugin file. Things were *much* worse. Hugin
couldn't align the images at all. It seems that it couldn't
understand the exposure info, and it made the component images
progressively darker:
https://lemis.nyc3.digitaloceanspaces.com/grog/Photos/20240610/small/Tapiola-Hugin.png
It also came with a popup "The project covers a big brightness
range,". But that's not what the images show. They cover a range 9.8
to 11.4 EV, and that matches the lighting. About the only thing
that's unusual is that the photos, taken with a Google Pixel 8 Pro,
were taken at a sensitivity of only 15 ISO. But that shouldn't make
any difference.
I've tried this with the latest version of Hugin and also with a 5
year old one, and the results are the same. You can see the summary,
with all the images above and more, at
http://www.lemis.com/grog/diary-jun2024.php?topics=p&subtitle=Hugin%20fail&article=D-20240611-005714#D-20240611-005714
, and the images themselves are available at
http://www.lemis.com/grog/Day/20240610/tapiola-panorama-photos.zip
(about 400 MB).
Any ideas?
Greg
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