Feature Request: Add Auto Color/Exposure Correction

[vladkryv]

Is your feature request related to a problem? Please describe.
Standard brightness and contrast sliders are sometimes insufficient for achieving high-quality results. Manually fine-tuning these parameters for every different printer or varying capture conditions can be quite tedious.

Describe the solution you'd like
Add an "Auto Color/Exposure Correction" checkbox. When enabled, the manual brightness and contrast sliders may either be disabled or hidden (if these parameters are applied as host-side post-processing rather than passed directly to the scanner hardware). The software should automatically optimize the document by adjusting the white balance (whitening the background) and stretching the dynamic range to improve text readability.

Describe alternatives you've considered
Great examples of this functionality are the Normalize() method from the Magick.NET library or the "Auto Color Correction" feature in Adobe Photoshop. These methods effectively normalize the tonal range and restore accurate colors, while preserving essential colored markings such as stamps and seals.

[simon-knuth]

Hi there, thank you for the suggestion and the detailed context! While the app traditionally didn't offer much in the way of image adjustments post-scan, that is starting to change with the updated brightness and contrast controls in v4.
I'd love to explore some automatic adjustments to improve and clean up scans and how those could be incorporated into the scan and editor experience in the future.

Not a focus for now, but I'll keep it in the backlog for me or someone else to revisit after the update has been released.