Paper scan unscrewing and straightening

If you (like me) like taking quick pictures (writing stuff down is not my hobby) with your cellphone for later reference you might also regret the bad quality that one most often meets when taking a quick snapshot or memo of a memo, letter or a whole document.

Some times you simply need a proper scanned document, yet have no flatbed scanner at hand. Or later realize this quick memo has to be redistributed or touched up and look good. Can you do it without a flatbed scanner?

Yes, your mobile camera will do! There are tools that unscrew and straighten your document photo or scan. These tools where built for digitizing books and the necessary restoring of paper scans;

• Scan Tailor
  Scan Tailor has a rather rudementary GUI and may suit most needs. Especially when working with attended restorations: you can see and tweak the scanned pages.
  
  
• Unpaper
  Unpaper as an Linux commandline application this might not be very userfriendly, but it saves the day ..every day.
  

Also, if once feels inclined these are easily integrated or ported to Android application. Did i mention i love Android?