我目前正在尝试在 tess4j 发行版中运行单元测试。在运行其中一个单元测试时，java 崩溃并出现以下错误：
TessBaseAPIGetIterator
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6718f834, pid=5612, tid=3592
#
# JRE version: 7.0_17-b02
# Java VM: Java HotSpot(TM) Client VM (23.7-b01 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [libtesseract302.dll+0xf834] tesseract::TessBaseAPI::Init+0x34
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# G:\Final year project\eclipse stuff\Testings\hs_err_pid5612.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
我能得到帮助吗？我相当确定 DLL 文件没有损坏，我的硬盘也没有损坏。我正在使用 Windows 8 操作系统和最新版本的 eclipse 来构建项目。
代码是：
import java.io.File;
import net.sourceforge.tess4j.*;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.PointerByReference;
import java.awt.image.BufferedImage;
import java.io.*;
import java.nio.*;
import java.util.Arrays;
import javax.imageio.ImageIO;
import net.sourceforge.tess4j.TessAPI1.*;
import net.sourceforge.vietocr.ImageIOHelper;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
public class TesseractExample{
String datapath = "G:\\Final year project\\eclipse stuff\\tessdemo\\tessdata";
String language = "eng";
String expOCRResult = "The (quick) [brown] {fox} jumps!\nOver the $43,456.78 <lazy> #90 dog";
TessAPI1.TessBaseAPI handle;
public void testResultIterator() throws Exception {
System.out.println("TessBaseAPIGetIterator");
String lang = "eng";
File tiff = new File("eurotext.tif");
BufferedImage image = ImageIO.read(new FileInputStream(tiff)); // require jai-imageio lib to read TIFF
ByteBuffer buf = ImageIOHelper.convertImageData(image);
int bpp = image.getColorModel().getPixelSize();
int bytespp = bpp / 8;
int bytespl = (int) Math.ceil(image.getWidth() * bpp / 8.0);
TessAPI1.TessBaseAPIInit3(handle, datapath, lang);
TessAPI1.TessBaseAPISetPageSegMode(handle, TessAPI1.TessPageSegMode.PSM_AUTO);
TessAPI1.TessBaseAPISetImage(handle, buf, image.getWidth(), image.getHeight(), bytespp, bytespl);
TessAPI1.TessBaseAPIRecognize(handle, null);
TessAPI1.TessResultIterator ri = TessAPI1.TessBaseAPIGetIterator(handle);
TessAPI1.TessPageIterator pi = TessAPI1.TessResultIteratorGetPageIterator(ri);
TessAPI1.TessPageIteratorBegin(pi);
System.out.println("Bounding boxes:\nchar(s) left top right bottom confidence font-attributes");
int height = image.getHeight();
do {
Pointer ptr = TessAPI1.TessResultIteratorGetUTF8Text(ri, TessAPI1.TessPageIteratorLevel.RIL_WORD);
String word = ptr.getString(0);
TessAPI1.TessDeleteText(ptr);
float confidence = TessAPI1.TessResultIteratorConfidence(ri, TessAPI1.TessPageIteratorLevel.RIL_WORD);
IntBuffer leftB = IntBuffer.allocate(1);
IntBuffer topB = IntBuffer.allocate(1);
IntBuffer rightB = IntBuffer.allocate(1);
IntBuffer bottomB = IntBuffer.allocate(1);
TessAPI1.TessPageIteratorBoundingBox(pi, TessAPI1.TessPageIteratorLevel.RIL_WORD, leftB, topB, rightB, bottomB);
int left = leftB.get();
int top = topB.get();
int right = rightB.get();
int bottom = bottomB.get();
System.out.print(String.format("%s %d %d %d %d %f", word, left, top, right, bottom, confidence));
System.out.println(String.format("%s %d %d %d %d", str, left, height - bottom, right, height - top)); // training box coordinates
IntBuffer boldB = IntBuffer.allocate(1);
IntBuffer italicB = IntBuffer.allocate(1);
IntBuffer underlinedB = IntBuffer.allocate(1);
IntBuffer monospaceB = IntBuffer.allocate(1);
IntBuffer serifB = IntBuffer.allocate(1);
IntBuffer smallcapsB = IntBuffer.allocate(1);
IntBuffer pointSizeB = IntBuffer.allocate(1);
IntBuffer fontIdB = IntBuffer.allocate(1);
String fontName = TessAPI1.TessResultIteratorWordFontAttributes(ri, boldB, italicB, underlinedB,
monospaceB, serifB, smallcapsB, pointSizeB, fontIdB);
boolean bold = boldB.get() == TessAPI1.TRUE;
boolean italic = italicB.get() == TessAPI1.TRUE;
boolean underlined = underlinedB.get() == TessAPI1.TRUE;
boolean monospace = monospaceB.get() == TessAPI1.TRUE;
boolean serif = serifB.get() == TessAPI1.TRUE;
boolean smallcaps = smallcapsB.get() == TessAPI1.TRUE;
int pointSize = pointSizeB.get();
int fontId = fontIdB.get();
System.out.println(String.format(" font: %s, size: %d, font id: %d, bold: %b," +
" italic: %b, underlined: %b, monospace: %b, serif: %b, smallcap: %b",
fontName, pointSize, fontId, bold, italic, underlined, monospace, serif, smallcaps));
} while (TessAPI1.TessPageIteratorNext(pi, TessAPI1.TessPageIteratorLevel.RIL_WORD) == TessAPI1.TRUE);
}
public static void main(String[] args) {
TesseractExample instance=new TesseractExample();
try {
instance.testResultIterator();
} catch (Exception e) {
System.err.println(e.getMessage());
}
}
}
谢谢！