You seem to have not specified the fully-qualified class name. You should cd to src and run:
java -cp .;...path-to-jars... net.sourceforge.tess4j.example.TesseractExample If possible, use an IDE, such as NetBeans or Eclipse. On Thursday, December 26, 2013 9:05:44 AM UTC-6, Risto Puusepp wrote: > > Hi! > I am new in Java but decided to give a shot. I have to recognize some > areas from image and extract text from that. I understand that Tesseract > has those options (define searching area, using something like OnlyNumbers > method and training option). I have tried Asprise but it seems that > Tesseract is more accurate. > > So far I did: > Downloaded and unpacked files from http://tess4j.sourceforge.net to my PC > under *C:\work\java\Tess4J*. I took and example > *http://tess4j.sourceforge.net/codesample.html > <http://tess4j.sourceforge.net/codesample.html>*, modified a bit and got > code: > package net.sourceforge.tess4j.example; > import java.io.File; > import net.sourceforge.tess4j.*; > public class TesseractExample { > public static void main(String[] args) { > File imageFile = new File("c:\\work\\java\\pngs\\test1.jpg"); > Tesseract instance = Tesseract.getInstance(); // JNA Interface > Mapping > //Tesseract1 instance = new Tesseract1(); // JNA Direct Mapping > try { > String result = instance.doOCR(imageFile); > System.out.println(result); > } catch (TesseractException e) { > System.err.println(e.getMessage()); > } > } > } > Files: > Directory of C:\work\java\Tess4J\src\net\sourceforge\tess4j\example > > 17.12.2013 20:08 <DIR> . > 17.12.2013 20:08 <DIR> .. > 17.12.2013 20:06 197 tess1.bat > 17.12.2013 20:08 191 tess11.bat > 26.12.2013 16:47 920 TesseractExample.class > 17.12.2013 19:44 622 TesseractExample.java > 4 File(s) 1 930 bytes > 2 Dir(s) 73 354 510 336 bytes free > > C:\work\java\Tess4J\src\net\sourceforge\tess4j\example> > > > It compiles without errors: > C:\work\java\Tess4J\src\net\sourceforge\tess4j\example>javac -cp .; > ..\..\..\..\..\lib\ghost4j-0.3.1.jar; > ..\..\..\..\..\lib\jai_imageio.jar; > ..\..\..\..\..\lib\jna.jar; > ..\..\..\..\..\lib\junit-4.10.jar; > ..\..\..\..\..\dist\tess4j.jar > TesseractExample.java > > But when I am going to execute then: > C:\work\java\Tess4J\src\net\sourceforge\tess4j\example>java -cp .; > ..\..\..\..\..\lib\ghost4j-0.3.1.jar; > ..\..\..\..\..\lib\jai_imageio.jar; > ..\..\..\..\..\lib\jna.jar; > ..\..\..\..\..\lib\junit-4.10.jar; > ..\..\..\..\..\dist\tess4j.jar > TesseractExample > > Exception in thread "main" java.lang.NoClassDefFoundError: > TesseractExample (wrong name: net/sourceforge/tess4j/example/ > TesseractExample) > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(Unknown Source) > at java.security.SecureClassLoader.defineClass(Unknown Source) > at java.net.URLClassLoader.defineClass(Unknown Source) > at java.net.URLClassLoader.access$100(Unknown Source) > at java.net.URLClassLoader$1.run(Unknown Source) > at java.net.URLClassLoader$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source) > > C:\work\java\Tess4J\src\net\sourceforge\tess4j\example> > > Am I missing some files or is the structure of files not correct??? > > > > > > -- -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en --- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
