I would like to programme a panorama correction tool which is able to:
- align an existing panorama to a new vertical axis
- lower or lift the horizon
- shift the forward direction of the panorama (already solved with PIL [pillow] with picture shifting)
The output shall be the same panorama with corrected axis, corrected horizon and corrected forward direction in equirectangular format.
Analogue ot my current tool (Bildshifter) I would like to do the following:
- convert the equirectangular panorama picture to a small version for a faster preview
- show panorama picture (preview) in browser with javascript panorama viewer (PanoradoViewer.js)
- interactively change the vertical angle, horizontal line and forward direction line in browser
- take the values of Theta (angle of vertical [=upright] correction in starting view), Gamma (angle of horizon correction) and Phi (shifting angle for new fwd direction) and calculate a new
equirectangular panorama in 3 steps:
2. correct horizon
3. shift fwd view position (picture shifting already coded)
I would use an interactive web page (with flask / flaskwebgui) with a javascript viewer (panorado) for the ineractive part (already working with picture shifting).
The small preview picture for the web page is created using PIL (pillow).
WiIth help of a suitable python library (not found yet) or directly with numpy (?) I would do the recalculation of the panorama itself.
Is there a good library for this kind of panorama recalculation?
Is there example code doing these operations (mainly step 1 and 2) on an equirectangular picture (not on a projected one) already existing?
I was inspired by a blog:
https://blogs.codingballad.com/unwrappi ... 09bd5bca94
I would be grateful for any help.
P.S. How do I add tags or metadata to this topic?