Port tesseract-ocr to android

[jgmao]

Shortcut

Seems someone did it:

• https://github.com/rmtheis/tess-two
• http://code.google.com/p/tesseract-android-tools/

  Plan

• Compile one of the tools on a linux machine, then copy the lib and/or source to motochallenge folder.
• may need NDK
• call tesseract from android app

  Note

  1. Install NDK
     • just download it and find 'ndk-build' in the folder
  2. compile tess-two and eyes-two
     • tess-two is an java interface to tesseract-ocr https://code.google.com/p/tesseract-ocr/
     • git clone git://github.com/rmtheis/tess-two tess
     • cd tess-two
     • ndk-build (~/your_path_to_ndk/ndk-build)
     • android update project --path . (~/your_path_to_adt/sdk/tools/android ...) when you do this step, there will be an error : no target try to see your target by: android list target and do android update project --path . -t x, where x is the id of your target
     • ant release
     • eyes-two is an java interface to Leoptonica (an image processing lib) http://www.leptonica.com/
     • cd eyes-two
     • ndk-build
     • android update project --path .
     • ant release

       Note-Note

an document processing example in Leoptonica

• http://tpgit.github.io/UnOfficialLeptDocs/leptonica/document-image-analysis.html

[jgmao]

@Yin-Shane-Xia can you try this if you got time in the afternoon? http://blog.csdn.net/kimylrong/article/details/11242683

[jgmao]

Now I can use tess-two API. The ocr result is quite good (in case the picture is good). There are two problems:

1. UI design: design the work flow of the app, from take picture to output data. (must show somthing after ocr) and also a better app name.
2. precess picture (tilting, deblurring, binarize..) @Yin-Shane-Xia @jeanwang325 @shengxinzha