Thank you, Jürgen. On 18/11/2020 16:03, Jürgen Mellinger wrote:
This seems to be a known issue: https://gitlab.com/sane-project/backends/-/issues/271Best, Juergen
This might explain why I can change the contrast and brightness of scans after turning off 'Use custom gamma table' in XSane by using the standard controls.
scan2pdf does not give me this option as brightness and contrast can only be controlled through the advanced settings which seem to be affected by the issue.
