Haha, nice to hear your experience. Those pictures aren't actually mine: they were taken by the National Survey in 1986 on film, and digitized later. They have accumulated a large collection of images through the years and have digitized images back to 1977. You can find those images here. <https://www.lmi.is/landupplysingar/loftmyndasafn-2-2/> I cant find any inforamtion on the cameras they used.
Thanks for responding. Þórir On Sunday, 21 April 2019 07:51:12 UTC, GnomeNomad wrote: > > 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 > >>>> <[email protected]> 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 > [email protected] <javascript:> > wandering the landscape of god > http://dancingtreefrog.com > -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. 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