how to use tesseract in a java project

[thera]

Hi
I'm trying to make use of Tesseract in a java project but I really
can't figure out the process of doing it.
Could someone please help me (Using a Mac 10.6)

I got the idea that a library by the name libtesseract_api.a


Taken from the ReadMe
"Another important change is that you should really be using
TessBaseAPI if you are linking with another program. In Linux (non-
Windows) the main library is now libtesseract_api.a instead of the old
libtesseract_full.a."

Sorry this may seem very simple but cant seem to figure out.
Any help would be really great
Thanks

[Renard Wellnitz]

Hi

i can only provide you with some pointers. What you basically need to do is to use JNI.

You can look here for help

• Android Java: http://code.google.com/p/tesseract-android-tools/
  
• Desktop Java: http://code.google.com/p/tesjeract/source/checkout.
  

Cheers 

Renard

[Karl Wettin]

The simplest solution would be:

Runtime.exec(new String[]{tesseractPath.getAbsolutePath(), tif.getAbsolutePath(), outputBase.getAbsolutePath(), "-l", language});

karl

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[jbg]

If you really want to use the Tesseract C++ API from a java app then I
suggest you to use http://code.google.com/p/javacpp/. I did it with it
and works fine. You need to create a couple of extra code but the
javacpp Readme gives a good overview how to do it.

[thera]

Thanks for all the pointers
I ended up using system calls like Karl Wettin has mentioned
but plan to check on the JNI

On Mar 24, 12:03 pm, jbg <bschil...@googlemail.com> wrote:
> If you really want to use the Tesseract C++ API from a java app then I

> suggest you to usehttp://code.google.com/p/javacpp/. I did it with it

[Neal Audenaert]

The Tess4J library is the one that I've seen talked about most often: http://tess4j.sourceforge.net/ 

I've started putting together a wrapper that makes this a bit more Java-flavored. https://github.com/audenaert/org.dharts.dia.tesseract

As the README says, this is early alpha and I haven't really tested it very well yet. It's not a .jar file, as such, but you should be able to use it to create a jar if that's what you need.

Neal Audenaert

On Mon, Sep 10, 2012 at 10:03 AM, sk <suri...@gmail.com> wrote:

For tesseract any compiled jar is available,  i need to use that with my java codings, i googled it, cant find the right solution for this, It would be helpful, if you provide detail steps for this issue..

--

[Neal Audenaert]

My first guess would be that you need to make sure that you are using a 32bit JVM. The DLL is 32bit, so your JVM needs to match. Then, so long as the DLL's are on the classpath (main project directory in Eclipse) it should be able to load them. 

--
Neal Audenaert

On Tue, Sep 11, 2012 at 1:40 AM, Suriya Prakash <suri...@gmail.com> wrote:

when i try to compile this,the error shown like this,in netbeans, i dont know where to put dll files

Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'libtesseract302': The specified module could not be found.

        at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:169)

        at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:242)

        at com.sun.jna.Library$Handler.<init>(Library.java:140)

        at com.sun.jna.Native.loadLibrary(Native.java:368)

        at com.sun.jna.Native.loadLibrary(Native.java:353)

        at net.sourceforge.tess4j.TessAPI.<clinit>(TessAPI.java:38)

        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:255)

        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:223)

        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:169)

        at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:154)

        at net.sourceforge.tess4j.example.TesseractExample.main(TesseractExample.java:15)

If you have any setup, please send me.