Connected component labeling for text detection in C#

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I'm doing project where I have to detect text in natural images, after the initial edge map generation stage, the connected component labeling must be done to identify text components. Are there any examples of connected component labeling done for text detection in C#?

Please no rude answers, this is the first time I've had to implement something like this.

EDIT:By natural images I meant images from real world like signboards for instance.

Posted 18-Aug-12 7:19am

butterflyzx4

Updated 18-Aug-12 18:36pm

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Sergey Alexandrovich Kryukov 18-Aug-12 13:32pm

What would be a text in "natural" image? "Mene, Mene, Tekel, u-Pharsin"? Looked somewhat supernatural though. :-)
--SA

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Christian Graus · Answer 1 · 2012-08-18T10:20:00

Solution 1

I assume natural means 'real world'. This is tough and I don't know of anyone doing this without using a prebuilt component to do it. Which usually means a commercial one.

Posted 18-Aug-12 10:20am

Christian Graus

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butterflyzx4 19-Aug-12 4:52am

Do you know of any API for C#?

Christian Graus 19-Aug-12 7:48am

Yes - I know that Atalasoft sells one, but it's not cheap. Like I said, the only way you can do this is to buy something

Ammar_Khaled · Answer 2 · 2012-09-02T03:06:00

There is a toolkit named leadtools that could help you doing your requirements. You can use it to do some processing on the image (i.e. binrize it, remove the unwanted dots from the image, convert it to 1-bit black & white, etc), and then pass it to their OCR engine.
You can check their website for more information, or contact their support team.