I was wondering if it is possible to get text (like an NSString) from a picture in iOS. So like if you took a picture of the words "Hello World" the code would convert the image into an NSString with the words "Hello World". For my purposes it wont matter if it is not case sensitive but I would like to know if it is possible and if so, then how.
Thanks.
I would look into this https://github.com/nolanbrown/Tesseract-iPhone-Demo and stack overflow has some posts about this already like Getting text from image on ios (image processing)
It is possible.
You would use OCR (Optical Character Recognition).
Because OCR is a broad and complex topic, the question of "how to" is probably too vague for S.O. You should probably do some research, make some prototypes, and develop some more specific follow up questions.
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:
The same guy has a nice sample project on github demonstrating how a simple client might use the compiled library:
