OCR

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Optical Character Recognition (commonly abbreviated as OCR) is a term broadly used to refer to any technology or method for processing an image, scan, or other real-world document in order to digitize the text characters it contains. This means an image with text on it, previously scannable only in pixels, would now have its image remain as pixels, but its text become selectable characters on a computer.

OMR


Tools


Resources

Android

iOS

[10] [11] [12] [13] [14] [15]


Tutorials


External Links


References

  1. Office Lens Is a Snap: http://research.microsoft.com/en-us/news/features/officelens-031714.aspx
  2. Google Code - Tesserac lib: http://code.google.com/p/tesseract-ocr/
  3. List of Java OCR libraries: http://www.javawhat.com/showCategory.do?id=2138003
  4. OCR libs for various platforms: http://centurion.dynalias.com/w/software/ocr
  5. OCR on Android: https://solidgeargroup.com/ocr-on-android (using Tesseract)
  6. Vision Framework: Building on Core ML: https://developer.apple.com/videos/play/wwdc2017/506
  7. CIRectangleFeature: https://developer.apple.com/documentation/coreimage/cirectanglefeature (rectangular region detected in a still or video image)
  8. Detecting Objects in Still Images: https://developer.apple.com/documentation/vision/detecting_objects_in_still_images (locate and demarcate rectangles, faces, barcodes, and text in images using the Vision framework.)
  9. “Live Text” (OCR image-to-text) Is the Best iPhone and Mac Feature You’re Not Using: https://www.howtogeek.com/796191/live-text-is-the-best-iphone-and-mac-feature-youre-not-using/ (available on iOS 15+ starting with iPhone XR & XS or newer)
  10. How to use iOS 11's Notes app as a document scanner: https://www.cnet.com/news/how-to-use-ios-11s-notes-app-as-a-document-scanner/
  11. Tesseract OCR Tutorial for iOS: https://www.raywenderlich.com/2010498-tesseract-ocr-tutorial-for-ios
  12. Building an iOS camera calculator with Core ML’s Vision and Tesseract OCR: https://heartbeat.fritz.ai/building-a-camera-calculator-with-vision-and-tesseract-ocr-in-ios-26f16240fe51
  13. Vision in iOS - Text detection and Tesseract recognition: https://medium.com/flawless-app-stories/vision-in-ios-text-detection-and-tesseract-recognition-26bbcd735d8f
  14. Getting Started with Vuforia Engine for iOS Development: https://library.vuforia.com/articles/Solution/Getting-Started-with-Vuforia-for-iOS-Development
  15. WeScan -- Document Scanning Made Easy for iOS: https://github.com/WeTransfer/WeScan

See Also

Image Recognition | NLP | Speech Recognition | Voice Recognition | Translation | Language | Book | Text