OCRJava: A Java repository from Cognitive Build

#OCRJava Optical Character Recognition Service. This is the project for Innovation Day practice, also an important asset of Bluemix and Cognitive CoEs.

#Prerequisite

Register your Bluemix account
Create Text to Speech service
Install Bluemix and CF CLI
Install Xcode (macOS only)
Install Eclipse Java EE IDE for Web Developers as your IDE (Download)
Setup Tomcat or Websphere Application Server Liberty Profile in the Eclipse for debugging purpose. Drag and drop this link into the Eclipse if you are installing Websphere Application Server Liberty Profile.

#Installation guide Windows

Install the tesseract, download Windows Installer here (tesseract-ocr-setup-3.02.02.exe)

macOS

Install HomeBrew

	/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install the tesseract

	brew install tesseract`

Grant authority for the folder by changing owner or grant 766 in case you don't have the access

	sudo chown -R $USER /usr/local

Install Xcode, because tesseract needs to be compiled as it only provide the source code

Any platform

Run git command or download the source code here

	git clone git@github.com:CognitiveBuild/OCRJava.git

When run the code in Websphere Application Server Liberty Profile as the web project, you need to download jai_imageio-1.1.jar and put it into /Library/Java/JavaVirtualMachines/jdk{version}.jdk/Contents/Home/jre/lib/ext folder. Maybe OSGI cause the problem
Add Text-to-Speech credentials in the code file: /OCRJava/src/com/ibm/waston/WastonSpeechHelper.java, obtain the credentials from Bluemix account

	private static final String TEXT_TO_SPEECH_USERNAME = "your_username";
	private static final String TEXT_TO_SPEECH_PASSWORD = "your_password";

Right click on the Chatbot project, choose Run As > Run on Server to open the OCR sample application

#How to use

Click on Choose a file button, then click on Recognize button in the Firefox or Google Chrome

#Dependencies

Tesseract for Java
Apache Common IO
FastJSON
jai-imageio
JNA
Apache HTTP Client (Upload)
Watson Java SDK

#Issues

jai_imageio-1.1.jar can't be loaded in the project dependencies if the Java Runtime is the Liberty Profile
Some Chinese characters cannot be well recognized due to the font issue, so the tesseract need to be trained, please check the reference below (Chinese version) http://www.cnblogs.com/mjorcen/p/3800739.html