Phantomski
Second Officer
Flight distance : 14869882 ft
United States
Offline
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*EDITED* 04/20/2017
Hi all! It took me a while to figure it out, and it's still not gereat, so wanted to pick people's brains on the best way to do this.
I am adding some data/edits here, as I have learned things.
So far I took a panorama using 2.7K video, since taking it with pictures, I sort of ran out of patience... The process is rougly the same for image panorama.
On video, some stitchers, like Imaga Composide Editor, will extract the photos out of the video on it's own, relatively well.
With the video, I filmed about 7-8 "around vertical axis" turns, starting looking down, then moving the camera up with each revolution. On images I can do about 8-10 images per revolution and I need about 3 or 4 rows plus 3 images straight down. Litchi app does ok with that too, but the process seems a bit faster, or perhpas it's because I am doing it and not just waiting for the app to stop flying my drone.... Either way -
O video the extract seems to bve about 150 stills, on manual photo still it's usually about 40 pics or so.
Then pull them into a stitcher, and stitch into a "spherical" panorama using something liek free Image Composite Editor.
Once that is done, the panorama can be saved, but it HAS to be 2:1 x/y ratio. You can use scaling, but I have found that it's better to go into something like gimp, and actually create an empty canvas with proper ratio of 2:1 based on your X resolution (horizontal), then I simply copy the sky over as an additional stripe above the current image, and this way i can keep the horizon in the middle - which makes it work way better! (I found, that in Gimp u can also "resize canvas" and them move your original image to the bottom or whatever.)
So now you have a spherical panorma, with cloned piece of the sky, and you got your 2:1 resolution rario. The last piece of the puzzle is telling it that it's a 360 pano. Now I get into exif editor (exifgui works), and edit the ProjectionType tag to "equirectangular" (make sure you press enter after changing the field, then do "save" on the image).
I have found that google maps, and few other apps require another exif tag - UsePanoramaViewer=True
Once this was done I could upload it to facebook, roundm skypixel, and it is recognized as 360.
Below are 2 360s made out of pictures, once I fix the video based ones a bit better i will add them here too. As you can see they are still not perfect, the stitching has some imperfections, but this is as close as I can get:
Roundme works ok lately: https://www.skypixel.com/user/gr ... d-b0d4-a407e36a599d
(I wish skypixel autoloaded a clickable preview into the forums, but it clearly does not, or I do not know how)
Thx for reading and enjoy your 360!
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https://www.skypixel.com/photos/34ea9f55-ccae-46e1-8619-9708f4fdd216
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https://www.skypixel.com/photos/d73fcc41-7d0b-4202-a6a6-605ee249d682
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