textfairy

Android OCR App

available in the [play store] [p] [p]: https://play.google.com/store/apps/details?id=com.renard.ocr

Features

• convert images to pdf
• recognize text in images
• basic document management
• delete
• edit
• merge multiple documents into one
• view table of content

Project Structure

• textfairy this is the android app
• hocr2pdf contains c++ code to create pdf files
• is used by the text fairy through a jni wrapper (textfairy/jni)
• OCRTest contains image processing code (binarization and page segmentation)
• can be compiled to a command line executable main.cpp to debug/test the image processing code
• is used by the text fairy through a jni wrapper (textfairy/jni)

The following android library projects are included as git submodules

• [ActionBarSherlock] 1
• [Android-ViewPagerIndicator] 2
• [ViewPager3D] 3

The following projects where added to the sources directly either because they where modified or they are not available as git repos

• [Tesseract (OCR Engine)] 4
• [Leptonica (Image processing library)] 5
• [Android Page Curl] 6
• [hocr2pdf] 7
• [Tesseract android tools] 8
• [libjpeg] 9

Building from command line

make sure that you have got the android sdk as well as ndk (r8e) installed

• git clone [email protected]:renard314/textfairy.git
• cd textfairy
• compile native code: ndk-build
• get a coffee
• now create the ant build files for all sub projects
  • android update lib-project -t 17 -p ActionBarSherlock/actionbarsherlock
  • android update lib-project -t 17 -p Android-ViewPagerIndicator/library/
  • android update lib-project -t 17 -p NineOldAndroids/library/
  • android update lib-project -t 17 -p ViewPager3D/
  • android update lib-project -t 17 -p FileExplorer/
• finally create build.xml for root project
  • cd textfairy
  • android update project --path .
• ant-debug

Importing code into eclipse

TODO