Tesseract OCR iOS

Tesseract OCR iOS is a Framework for iOS5+, also for armv7s.

It will help you to use OCR in a iOS project. Easy and fast.

Attach the project

Add the framework "TesseractOCR.framework" (you can drag&drop it) from the Products folder in this repo, to your XCode Project under your project
If you are masochist :) you can generate your TesseractOCR.framework building the TesseractOCRAggregate target.

Go to your project, click on the project and in the Build Settings tab add -lstdc++ to all the "Other Linker Flags" keys.
Go to your project settings, and ensure that C++ Standard Library => Compiler Default. (thanks to https://github.com/trein)
Import the tessdata folder under the root of your project. It contains the "tessdata" files. You can add more tessdata files copyng them here.
Import the header in your classes writing #import <TesseractOCR/TesseractOCR.h>
Now you can use Tesseract class like explained here: https://github.com/ldiqual/tesseract-ios

ex. from https://github.com/ldiqual/tesseract-ios but using the "TesseractOCR.framework"

#import <TesseractOCR/TesseractOCR.h>

Tesseract* tesseract = [[Tesseract alloc] initWithDataPath:@"tessdata" language:@"eng"];
//language are used for recognition. Ex: eng. Tesseract will search for a eng.traineddata file in the dataPath directory. 
//eng.traineddata is in your "tessdata" folder.

[tesseract setVariableValue:@"0123456789" forKey:@"tessedit_char_whitelist"]; //limit search
[tesseract setImage:[UIImage imageNamed:@"image_sample.jpg"]]; //image to check
[tesseract recognize];

NSLog(@"%@", [tesseract recognizedText]);

Set Tesseract variable key to value. See http://www.sk-spell.sk.cx/tesseract-ocr-en-variables for a complete (but not up-to-date) list.
For instance, use tessedit_char_whitelist to restrict characters to a specific set.

Dependencies

Tesseract OCR iOS use UIKit, Foundation and CoreFoundation. They are already included in standard iOS Projects.

License

Tesseract OCR iOS and TesseractOCR.framework are under MIT License.
Tesseract-ios, powered by ldiqual https://github.com/ldiqual/tesseract-ios, is under MIT License.
Tesseract, powered by Google http://code.google.com/p/tesseract-ocr/, is under Apache License.

Thanks

Thanks to ldiqual for the good wrapper for Tesseract.

Author Infos