Text recognition on openCV

[Yau Mun]

Hi all, I'm doing a project on recognition text from an input image. How can it be done with openCV? Does it have any tutorial?

[Long Long Yu]

Well, there is not any specific tutorial for text recognition, there is a basic pipeline which u can learn:

text region detection, text cropping (split the text region into several characters), and then apply OCR algorithm.

good luck!

2012/5/16 Yau Mun <yaumu...@gmail.com>

Hi all, I'm doing a project on recognition text from an input image. How can it be done with openCV? Does it have any tutorial?

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Long Long

[Yau Mun]

Hi, means also need to implement OCR as well?

[Long Long Yu]

well, u can use Tesseract library to do OCR, but this library works well for document text and not good for natural scene text. So, I think u have to train a multiclass (multi character) recognition system to do OCR. But the problem is: collecting a good database, implement a good feature extractor (i.e. HOG) and the choice of a machine learning to train and classify.

2012/5/16 Yau Mun <yaumu...@gmail.com>

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Long Long

[Shervin Emami]

You can also try the OCR tutorial at "http://blog.damiles.com/2008/11/basic-ocr-in-opencv/" if you want to implement your own system from scratch.

Cheers,
Shervin Emami.