The following article explains how the developers of the Scanner and Document Management app Docutain turned regular photos into high-quality document scans.
It gives an overview about how to minimize geometric and photometric distortions, determining a background image, determining a document in general with illumination estimation as well as segmentation and interpolation methods:
https://sdk.docutain.com/blogartikel/scanner-filter
These filter functionalities are also used within the Docutain Document Scanner SDK for B2B customers, who want to integrate ready-to-use Scanning functionality into their apps.
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