If you have the negatives, you can use the darktable module negadoctor.
For that module it would be helpful to have a part of the film base in the picture.
That is what I get using the negadoctor module:[/quote]
Thanks for your help
The feature using “negadoctor module” is similar to that feature of
GIMP: Colors → Auto → White Balance
Pls refer to upload image. The white wall becomes a red wall.
Regards
