Getting text from image on ios (image processing)

I am thinking of making an application that requires extracting TEXT from an image. I haven't done any thing similar and I don't want to implement the whole stuff on my own. Is there any known library or open source code (supported for ios, objective-C) which can help me in extracting the text from the image. A basic source code will also do (I will try to modify it as per my need).

Kindly l开发者_如何学运维et me know if some one has any idea on this.

Thanks, Vikram

One of the main open source libraries used to do OCR on iOS is a google-sponsored open source project called tesseract.

Here is some info on compiling tesseract for use in iOS apps:

tesseract

The same guy has a nice sample project on github demonstrating how a simple client might use the compiled library:

Pocket-OCR