OCR Test

OCR Test

50,000 - 100,000 downloads

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Experimental app for optical character recognition (OCR).

Runs the Tesseract 3.03 open source OCR engine to find text in images captured by the device camera.

This app runs OCR on your device--without uploading your images to a server--and is suitable for recognizing individual words or short phrases of text. Translation (powered by Microsoft/Google) can be run after OCR.

The default single-shot capture runs OCR on a snapshot image that's captured when you click the shutter button, like a regular photo.

When the "continuous preview" checkbox is checked, the app shows a dynamic, real-time display of what the device is recognizing right beside the camera viewfinder. The continuous preview mode works best on a fast device.


- Point the device at some text and touch the on-screen shutter button to start OCR.

- To copy text to the clipboard or share text, long-press on the text after pressing the shutter button.

- For recognizing individual Chinese/Japanese/Korean characters, set the page segmentation mode to "single character."


- Various factors can cause the OCR to fail: uneven illumination, stylized text, or text without enough contrast from the background. Try to have good lighting.

- Hold the device steady, and be sure the picture is in focus.

- If you need to scan a large block of text or an entire document, consider using a flatbed scanner or a document scanning app such as TextFairy instead.


- This app supports several languages not supported by Google Goggles/Google Translate.

- Supported languages for OCR: Afrikaans, Albanian, Arabic, Azeri, Basque, Belarusian, Bengali, Bulgarian, Catalan, Chinese (Simplified), Chinese (Traditional), Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Lithuanian, Macedonian, Malay, Malayalam, Maltese, Polish, Portuguese, Romanian, Russian, Serbian (Latin), Slovak, Slovenian, Spanish, Swahili, Swedish, Tagalog, Tamil, Telugu, Thai, Turkish, Ukrainian, and Vietnamese.

- Arabic OCR requires a large amount of RAM. If your device doesn't have enough RAM, the app will quit during OCR.


- This is an open source project. The source code is available at https://github.com/rmtheis/android-ocr.

- Since the release of this app, Google Goggles has added a "continuous mode" and Google Translate has added OCR-based translations. There is also one VC-funded startup that has used this app as a starting point.

- Thanks to the contributors: Spoorthi, Hunvil, Jingjing, Xuyuan, and Mandar.

My latest translation app:

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Recently changed in this version

Dec. 13, 2013:

Fixed a forward-compatibility bug that hid menu on newer devices.
Added a preference setting to disable focus modes that don't work well on some devices.
Upgraded to use Tesseract v3.03.
Updated to retrieve newest version of Tesseract data files.
Added new OCR languages.
Added new translation languages.

Comments and ratings for OCR Test
  • (53 stars)

    by Mohamed Sufian on 22/03/2014

    Most of the text turns out in to make no sense at a(+l;!$l

  • (53 stars)

    by Josh Varughese on 21/03/2014

    Very good but has bad font pickup for. Malayalam.

  • (53 stars)

    by ADNAN NAZIR on 22/02/2014

    Awesome. Very good. Excellent. Keep doing good working.

  • (53 stars)

    by Nayeem Ahmed on 15/02/2014

    I like It

  • (53 stars)

    by ApkApps zOn on 15/02/2014

    I like It

  • (53 stars)

    by Elijah Caoili on 03/01/2014

    Good app.

  • (53 stars)

    by Makrand Patil on 20/12/2013

    Making your code open, helps alot of us.