motion-ocr

MotionOCR

A RubyMotion wrapper for the OCR engine Tesseract.

Installation

First, install the gem:

gem install motion-ocr

Then, reference it in your RubyMotion project Rakefile:

# -*- coding: utf-8 -*-
$:.unshift("/Library/RubyMotion/lib")
require 'motion/project/template/ios'

require 'motion-ocr'

And that's it. Build your project and MotionOCR will be ready for action.

Use

ocr             = Motion::OCR.new
image_with_text = UIImage.imageNamed('phototest.gif').CGImage

ocr.scan(image_with_text) # returns a String containing the detected text in the image

Options

You use your own Tesseract language file (available at https://code.google.com/p/tesseract-ocr/downloads/list).

Put the language file (e.g., spa.traineddata) into your app's ressources/tessdata directory. Then pass the language to MotionOCR:

ocr = Motion::OCR.new language: 'spa'