Hey, thanks for sharing the pictures. Loved them, big and sharp. :)
Very big - 446.8MB per image! What kind of drone/camera did you use?
The focal length Hugin PTO Generator came up with was 34.607 with a
multiplier of 1.
I stitched all 4 of them, full sized, in Hugin on my Linux laptop. First
ran the Hugin PTO Generator. Then opened the PTO in Hugin, ran the
CPFind + Celeste option on it. Ran the Positions Incremental geometric
otpimization. Cleaned the control points. On the Masks tab, masked out
the corner notch and the black borders on the images. Ran the Positions
and Barrel Distortion (yp4b) geometric optimization. Went to the Fast
Preview, set it to Rectilinear projection. Clicked the Center button on
Move/Drag tab, then Autocrop. On the Stitcher tab, I clicked Calculate
Optimal Size. I experimented with various photometric optimizations and
finally decided to just leave it untouched.
Saved the PTO and ran the stitch. Stitching took 4 minutes on my 2.4GHz
i7 processor.
Memory usage peaked at 10.8GB (my laptop has 16GB). That could affect
things on machines with less memory or other operating systems. My
office laptop with Windows 7 Enterprise and 8GB of memory uses just
about 4GB of memory for Windows and the assorted enterprise-mandated
security applications. So I suspect the fact that stitching stopped and
produced a corrupted file on your computer means your computer ran out
of memory and something didn't respond well to using swap space.
I ended up with a 932.9MB 48-bit TIFF file. Ran the stitch again to
output a JPG and got a 345.3MB file.
Thank you again for the pictures. I currently shoot mere 6Mpixel 48-bit
TIFF and plan to move to a 42-45Mpixel camera in the future. Nice to
know that my present set up can handle large images!
On 4/17/19 8:30 AM, Wirz wrote:
Hi,
I think there is nothing wrong with your pictures. I gave the first
first two a try and they stitch fine
(http://78.46.190.157:8080/first-two.jpg).
Mostly that is, because there is a conceptual problem with aerial
pictures: You can either stitch photos of any scene (with all the photos
taken from the same point), or of a flat surface (with almost arbitrary
camera positions). Given that Iceland is not flat, and airplanes are
not stationary, neither approximation is perfect. But if some artefacts
are acceptable you can assume that the ground is flat enough and the
result won't be too bad.
cheers, lukas
On 17/04/2019 17:48, Kameldýrið wrote:
The focal length is 151,78 mm on those
On Wednesday, 17 April 2019 14:40:05 UTC, Kameldýrið wrote:
Hi Terry.
Whenever hugin stitches them together it stops responding and results in a
corrupt file.
I dont know if its due to their size (they're fairly large tiffs) or to my
computers limitations.
The tiff files of the 4 photos can be downloaded if you would like to
recreate. (500
<https://atlas.lmi.is/getfile/tif_loftmynd.php?id=/mnt/loftmvolmc/loftmvolm8/loftm_vol_8/J36-J-8500>,
501
<https://atlas.lmi.is/getfile/tif_loftmynd.php?id=/mnt/loftmvolmc/loftmvolm8/loftm_vol_8/J36-J-8501>,
502
<https://atlas.lmi.is/getfile/tif_loftmynd.php?id=/mnt/loftmvolmc/loftmvolm8/loftm_vol_8/J36-J-8502>,
503
<https://atlas.lmi.is/getfile/tif_loftmynd.php?id=/mnt/loftmvolmc/loftmvolm8/loftm_vol_8/J36-J-8503>
)
Thanks for responding
On Wednesday, 17 April 2019 02:50:51 UTC, Tduell wrote:
On Wed, 17 Apr 2019 06:48:01 +1000, Kameldýrið
<thorir.j...@gmail.com> wrote:
Hi. I'm new to hugin an I wanted to know if there's a way to stitch
aerial
photos.
I have 4 photos I'd like to stich together but I don't know how.
Any help is appreciated.
Have you read the tutorials ?
<http://hugin.sourceforge.net/tutorials/index.shtml>
Assuming that your images have a reasonable amount of overlap, I'd
suggest
you have a try and if you run into difficulties, then come back here with
details of your problems.
Cheers,
--
Regards,
Terry Duell
--
David W. Jones
gnomeno...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com
--
A list of frequently asked questions is available at:
http://wiki.panotools.org/Hugin_FAQ
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