【发布时间】：2013-06-26 06:35:33
【问题描述】：
我创建了一个简单的 Swing 应用程序，它执行某种形式的 ocr。 问题是我有一个具有静态方法的实用程序类
public static String readImage(BufferedImage image){
String str = null;
//Tesseract instance = Tesseract.getInstance(); // JNA Interface Mapping
Tesseract1 instance = new Tesseract1(); // JNA Direct Mapping
try {
System.out.println("Starting OCR process at " + new Date() + "... ");
str = instance.doOCR(image);
} catch (TesseractException e) {
System.err.println(e.getMessage());
}
return str;
}
现在当我使用此方法时会出现以下错误
Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: Error looking up function 'TessBaseAPICreate': libtesseract.so: undefined symbol: TessBaseAPICreate
at com.sun.jna.Function.<init>(Function.java:179)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:391)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:371)
at com.sun.jna.Native.register(Native.java:1401)
at com.sun.jna.Native.register(Native.java:1065)
at net.sourceforge.tess4j.TessAPI1.<clinit>(TessAPI1.java:37)
at com.discusit.ocr.ocrutil.OCRUtil.readImage(OCRUtil.java:22)
at com.discusit.form.OCRForm.browseButtonActionPerformed(OCRForm.java:350)
at com.discusit.form.OCRForm.access$000(OCRForm.java:26)
at com.discusit.form.OCRForm$1.actionPerformed(OCRForm.java:103)
t javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
我已经放置了liblept168.dll， libtesseract.so 和 libtesseract302.dll 在我的项目根文件夹中。
我不知道该怎么做。提前致谢。
【问题讨论】：
-
我使用的图像是某些形式的扫描图像。这些表格也有一些类似这样的：servingtogetherproject.org/wp-content/uploads/2012/07/… 我可以做些什么来正确识别这些字母。