Unfortunately, lensfun (used bu darktable) doesn't correct the barrel distortion completely,
I have a wide angle shot with my Lumix DMC-FZ1000 where there are still distortions and dark areas near the corners which are not present if the raw file is processed by Silkypix (software distributed with the camera).
Lensfun does not use the embedded lens distortion parameters which are stored in each .rw2 raw file -
see https://syscall.eu/#pana
Which infrastructure of libraw could be used to implement distortion correction based on these data?
Unfortunately, lensfun (used bu darktable) doesn't correct the barrel distortion completely,
I have a wide angle shot with my Lumix DMC-FZ1000 where there are still distortions and dark areas near the corners which are not present if the raw file is processed by Silkypix (software distributed with the camera).
Lensfun does not use the embedded lens distortion parameters which are stored in each .rw2 raw file -
see https://syscall.eu/#pana
Which infrastructure of libraw could be used to implement distortion correction based on these data?
Many thanks for a hint,
Helmut