Including Tess4J to a Java project as library in Eclipse
Follow the steps described in the following link to get Tess4J to run in Eclipse:
http://sourceforge.net/projects/tess4j/forums/forum/1202294/topic/4506433
I'm not sure the library would run on Android because it seems JNA support on the platform is not there yet.
If you want a .NET wrapper for Tesseract 3.01, take a look at https://github.com/charlesw/tesseract-ocr-dotnet.
sschrass
Likes Android, likes REST and likes to get more in touch with both. Convinced that HTML5 is a bad thing for apps, but cool for websites. Plays League Of Legends on a regular basis and --of course Quake.
Updated on July 08, 2022Comments
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sschrass almost 2 years
I have an so far empty and clean Eclipse Java project. What do I have to do to use
Tess4J
as library for my web service that I want to develop? Is it even possible to use it as library for an Android project? (would be shortcutting a lot) There is an issue regarding.tif
with android that I came across.Tess4J is a wrapper for native code, because tesseract-ocr is written in C/C++. That I've got so far. But how to include this wrapper into my project?
I've googled a lot until I have decided to drop
tesseract.Net
, beacuse this project is badly maintained/documented and would force me to C# (which would be okay), but I didn't manage to get it to work, so I had to default to C/C++ (which is not okay) ;)I'm kind of lost right now, so any help is welcome. regards.
Edit: followed the steps mentioned here (answer from nguyenq)
1: new Eclipse workspace
2: created a new dir called
lib
3: copied
\Tess4J\dist\tess4j.jar
,\Tess4J\lib\jna.jar
and\Tess4J\lib\jai_imageio.jar
intolib
(2)4: created a new Java project in Eclipse
5: in project properties (4) I added the .jars from (3) to Java build path as external jars under libraries
6: I copied the dir
\tessdata
andlibtesseract302.dll
into the project root dir\workspace\project\
7: I created a new class
Main
and instantiated aTesseract1 tesseract = new Tesseract1();
for testing8: I run the application but an Exception was thrown:
Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'libtesseract302' Module not found
Edit2:
7.1: I created a new class
Main
and instantiated aTesseract tesseract = new Tesseract.getInstance();
for testing (source: here)8.1: looked okay so far, but no logic implemented, just tried to build it.
Edit3:
9: nope, doesn't work. Still UnsatisfiedLinkError. Could it may be an issue regarding 32-bit vs. 64-bit? I'am working on Win7 64bit.