Also see this for more implementation details: https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobile-document-scanner-just-5-minutes/ https://www.pyima

Also see this for more implementation details: https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobile-document-scanner-just-5-minutes/ https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobi... This could be done server side if you're already doing ocr.