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ajacoutot b214e28324 Add a small HOWTO about OCR. Inspired from http://info.iet.unipi.it/~luigi/FreeBSD/dx5050.html Use REVISION and new DEPENDS.		2010-07-17 08:13:01 +00:00
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README.OpenBSD	Add a small HOWTO about OCR.	2010-07-17 08:13:01 +00:00

README.OpenBSD

$OpenBSD: README.OpenBSD,v 1.1 2010/07/17 08:13:01 ajacoutot Exp $

OCR with tesseract under OpenBSD
================================

Here's a quick HOWTO about optical character recognition using:
    scanimage(1) -- from the sane-backends package
    unpaper -- from the unpaper package
    convert(1) -- from the ImageMagick package
    tesseract

$ scanimage --mode gray --resolution 300 > scan.pnm
$ unpaper -b 0.5 -w 0.8 -l single scan.pnm scan1.pnm
$ convert scan1.pnm scan.tif
$ tesseract scan.tif scan.txt