Deskew is a tool for deskewing scanned text documents. Deskewing is a term used for fixing the scans to get the lines of text straight. That means rotating the image of the scanned page a little to compensate for the misalignment of the paper in the scanner.
Deskew uses Hough transform to detect “text lines” in the image and their orientation. As an output, you get an image rotated so that the detected lines are horizontal. You can find more theory in introductory post Deskewing Scanned Documents if you are curious.
At the moment, Deskew is a command line tool for Windows, Linux, and Mac. Based on the user feedback and my own usage, I’d say it works quite well 🙂 On occasion, I think about stuff like: GUI for Deskew, Deskew app for Android, Deskew web app, and even Deskew Photoshop plugin!
All Posts About Deskew
- Deskew Tool v1.20 Released Posted on: November 29, 2016
- Deskew Tool Version 1.10 Posted on: March 7, 2014
- Deskew Tool Updated Posted on: June 6, 2012
- Deskewing Scanned Documents Posted on: January 5, 2011
» 4.1 MiB - 6,249 hits - January 5, 2011 (last update November 1, 2016)
Command line tool for deskewing scanned documents. Binaries for several platforms, test images, and Object Pascal source code included.
Public Mercurial source repository of Deskew CLI tool is now hosted at BitBucket: https://bitbucket.org/galfar/app-deskew.