What would be good to see on this page: an example of the correction of unwanted fish-eye from a portrait photo of a face.
You could fix bad profile photos and such without the need to upgrade to more expensive optics.
Converting a fisheye image into a panoramic, spherical or perspective projection
11–20 of 28 posts
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#12I have seen these pages few years ago. But I could not find source code for these examples
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#13I have seen these pages few years ago. But I could not find source code for these examples
> The source code implementing the projections below is only available on request for a small fee.
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#14Transformations like these have wide applicability. Performing optics in software so to speak, is more flexible and cheaper than grinding lenses and building special cameras. I was charged once, with transforming images for projection onto a sphere through special lenses. I didn't know the lens transform, the manufacturer kept that secret. I did know that the intensity across the spherical surface was of uniform brig…
Sounds like a classic f-theta lens design. I'm sure you were right about your transform, but it's also possible to equalize illumination by other means, like apodizing filters.
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#15Just throw it into im2im stable diffusion (joking but it also would likely literally work).
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#16Paul Bourke's webpage is a true internet gem for 3D reference information. I don't know how many times I must've landed on his page on 3D file format specifications.
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#17I just got stable-diffusion running and thought the title of this would make an amusing prompt.
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#18Not sure if this was shared already, but here's an example of the reflection of Buzz Aldrin's visor unwrapped into a 360 image: https://www.reddit.com/r/space/comments/ooexmd/i_unwrapped_b...
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#19A few years ago, I was working for a startup in Pakistan which was making small (5-10 person) portable planetariums. The idea was to make astronomy education accessible to people from every socio-economic background. Paul's work on this [1] was amazingly helpful to get our projection done well, and put on successful shows.
Also, shout out to the European Space Agency for releasing high quality Planetarium documentaries under the CC license [2].
[1] http://paulbourke.net/dome/ [2] https://www.eso.org/public/videos/archive/category/fulldome/...
Re: Converting a fisheye image into a panoramic, spherical or perspective projection
#20Paul Bourke's webpage is a true internet gem for 3D reference information. I don't know how many times I must've landed on his page on 3D file format specifications.
Me too. An amazing resource.