How to read the text from an image in iphone

i want to read text i开发者_JAVA技巧n an image how to do that...

Thanks

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What you’re asking about is called OCR, and it isn’t as simple as you might think. Luckily, there is at least one open-source effort to do it.

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You need an OCR library, see this question for further information. For a more specific answer, you might want to post a more specific question.