Textfairy

Android OCR App

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

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

• [Forked Tesseract Tools for Android by rmtheis] 1

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

• [hocr2pdf] 2
• [libjpeg] 3
• [libpng-android] 4

Building with gradle

make sure that you have got the android sdk as well as ndk (r15c) installed

• git clone git@github.com:renard314/textfairy.git
• cd textfairy
• git submodule update
• git submodule init
• set ndk.dir to point to your ndk-build in gradle.properties
• cd tess-two/tess-two
• ndk-build -j4
• cd ../../
• ./gradlew app:assembleDevelopDebug