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

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.

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.