Optical character recognition: Difference between revisions

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(Not wiki bug, Mitchell brain bug. Category:Camera fixed.)
(→‎Resources: +tesseract-ocr link)
 
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* http://lem.eui.upm.es/ocre.html Capable of user training. What range of languages might it be used with?
* http://lem.eui.upm.es/ocre.html Capable of user training. What range of languages might it be used with?
* http://www.gnu.org/software/ocrad/ocrad.html Unexamined.
* http://www.gnu.org/software/ocrad/ocrad.html Unexamined.
* http://code.google.com/p/tesseract-ocr/


[[Category:Camera]]
[[Category:Camera]]

Latest revision as of 11:42, 26 June 2008

This article is a stub. You can help the OLPC project by expanding it.
See Scanning for the OCR of books to create OLPC content.

Optical character recognition (OCR) is the conversion of photographs of text, into editable text.

This page was created mostly in support of Test automation.

Running OCR on an XO

Install gocr.

yum install gocr

Next, get a pnm image of some page of text.

One approach is to take a screenshot.

yum install ImageMagick

Use Record to take a picture of some text, and show it full screen. Then in Terminal,

sleep 5; import -window root pageimage.png

and switch back to Record while the sleep is happening, and wait for the screenshot to be taken.

Convert the image to text.

gocr pageimage.pnm

Resources