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验证码的OCR方式识别

JavaiOSJ#IIS.net 
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      关于Java的验证码识别方面不是太多,有的大多是基于特征码提取的.最近要自动登录网站抓取数据,使用了OCR方式识别的方式处理,记录一下下.
       使用的OCR引擎是tesseract,冒得别地选了.
       此引擎的优点重复下,字母类语言的识别率几乎可达100%,前提是图像最好黑白(二值化过地),噪点少地图,测试时发现每个字符的高度必须在10个像素以上才能识别.
      增强识别率的关键是要识别的验证码图片越干净越好,为此准备了六种图像过滤,用以滤干净图像,有:图像二值化,锐化,中值滤波,线性灰度变换,转黑白灰度图,放大(非平滑缩放).

    一般干扰不太严重的验证码,如支付宝使用图像二值化和线性灰度变换就可以做到100%识别,有噪点的才需要中值滤波.

使用这六种过滤的组合应该可以搞定大部分比较弱智的验证码

参考了jtOCR的调用封装

调用很简单的图像过滤:

package net.wealthgod.client.center.ocr;

import java.awt.Graphics2D;
import java.awt.color.ColorSpace;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.awt.image.ColorModel;
import java.awt.image.MemoryImageSource;
import java.awt.image.PixelGrabber;

public class ImageFilter {
 private BufferedImage image;

 private int iw, ih;

 private int[] pixels;

 public ImageFilter(BufferedImage image) {
  this.image = image;
  iw = image.getWidth();
  ih = image.getHeight();
  pixels = new int[iw * ih];
 }

 /** 图像二值化 */
 public BufferedImage changeGrey() {
  PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
  try {
   pg.grabPixels();
  } catch (InterruptedException e) {
   e.printStackTrace();
  }
  // 设定二值化的域值，默认值为100
  int grey = 100;
  // 对图像进行二值化处理，Alpha值保持不变
  ColorModel cm = ColorModel.getRGBdefault();
  for (int i = 0; i < iw * ih; i++) {
   int red, green, blue;
   int alpha = cm.getAlpha(pixels[i]);
   if (cm.getRed(pixels[i]) > grey) {
    red = 255;
   } else {
    red = 0;
   }

   if (cm.getGreen(pixels[i]) > grey) {
    green = 255;
   } else {
    green = 0;
   }

   if (cm.getBlue(pixels[i]) > grey) {
    blue = 255;
   } else {
    blue = 0;
   }

   pixels[i] = alpha << 24 | red << 16 | green << 8 | blue;
  }
  // 将数组中的象素产生一个图像
  return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, pixels, 0, iw));
 }

 /** 提升清晰度,进行锐化 */
 public BufferedImage sharp() {
  PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
  try {
   pg.grabPixels();
  } catch (InterruptedException e) {
   e.printStackTrace();
  }

  // 象素的中间变量
  int tempPixels[] = new int[iw * ih];
  for (int i = 0; i < iw * ih; i++) {
   tempPixels[i] = pixels[i];
  }
  // 对图像进行尖锐化处理，Alpha值保持不变
  ColorModel cm = ColorModel.getRGBdefault();
  for (int i = 1; i < ih - 1; i++) {
   for (int j = 1; j < iw - 1; j++) {
    int alpha = cm.getAlpha(pixels[i * iw + j]);

    // 对图像进行尖锐化
    int red6 = cm.getRed(pixels[i * iw + j + 1]);
    int red5 = cm.getRed(pixels[i * iw + j]);
    int red8 = cm.getRed(pixels[(i + 1) * iw + j]);
    int sharpRed = Math.abs(red6 - red5) + Math.abs(red8 - red5);

    int green5 = cm.getGreen(pixels[i * iw + j]);
    int green6 = cm.getGreen(pixels[i * iw + j + 1]);
    int green8 = cm.getGreen(pixels[(i + 1) * iw + j]);
    int sharpGreen = Math.abs(green6 - green5) + Math.abs(green8 - green5);

    int blue5 = cm.getBlue(pixels[i * iw + j]);
    int blue6 = cm.getBlue(pixels[i * iw + j + 1]);
    int blue8 = cm.getBlue(pixels[(i + 1) * iw + j]);
    int sharpBlue = Math.abs(blue6 - blue5) + Math.abs(blue8 - blue5);

    if (sharpRed > 255) {
     sharpRed = 255;
    }
    if (sharpGreen > 255) {
     sharpGreen = 255;
    }
    if (sharpBlue > 255) {
     sharpBlue = 255;
    }

    tempPixels[i * iw + j] = alpha << 24 | sharpRed << 16 | sharpGreen << 8 | sharpBlue;
   }
  }

  // 将数组中的象素产生一个图像
  return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, tempPixels, 0, iw));
 }

 /** 中值滤波 */
 public BufferedImage median() {
  PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
  try {
   pg.grabPixels();
  } catch (InterruptedException e) {
   e.printStackTrace();
  }
  // 对图像进行中值滤波，Alpha值保持不变
  ColorModel cm = ColorModel.getRGBdefault();
  for (int i = 1; i < ih - 1; i++) {
   for (int j = 1; j < iw - 1; j++) {
    int red, green, blue;
    int alpha = cm.getAlpha(pixels[i * iw + j]);

    // int red2 = cm.getRed(pixels[(i - 1) * iw + j]);
    int red4 = cm.getRed(pixels[i * iw + j - 1]);
    int red5 = cm.getRed(pixels[i * iw + j]);
    int red6 = cm.getRed(pixels[i * iw + j + 1]);
    // int red8 = cm.getRed(pixels[(i + 1) * iw + j]);

    // 水平方向进行中值滤波
    if (red4 >= red5) {
     if (red5 >= red6) {
      red = red5;
     } else {
      if (red4 >= red6) {
       red = red6;
      } else {
       red = red4;
      }
     }
    } else {
     if (red4 > red6) {
      red = red4;
     } else {
      if (red5 > red6) {
       red = red6;
      } else {
       red = red5;
      }
     }
    }

    // int green2 = cm.getGreen(pixels[(i - 1) * iw + j]);
    int green4 = cm.getGreen(pixels[i * iw + j - 1]);
    int green5 = cm.getGreen(pixels[i * iw + j]);
    int green6 = cm.getGreen(pixels[i * iw + j + 1]);
    // int green8 = cm.getGreen(pixels[(i + 1) * iw + j]);

    // 水平方向进行中值滤波
    if (green4 >= green5) {
     if (green5 >= green6) {
      green = green5;
     } else {
      if (green4 >= green6) {
       green = green6;
      } else {
       green = green4;
      }
     }
    } else {
     if (green4 > green6) {
      green = green4;
     } else {
      if (green5 > green6) {
       green = green6;
      } else {
       green = green5;
      }
     }
    }

    // int blue2 = cm.getBlue(pixels[(i - 1) * iw + j]);
    int blue4 = cm.getBlue(pixels[i * iw + j - 1]);
    int blue5 = cm.getBlue(pixels[i * iw + j]);
    int blue6 = cm.getBlue(pixels[i * iw + j + 1]);
    // int blue8 = cm.getBlue(pixels[(i + 1) * iw + j]);

    // 水平方向进行中值滤波
    if (blue4 >= blue5) {
     if (blue5 >= blue6) {
      blue = blue5;
     } else {
      if (blue4 >= blue6) {
       blue = blue6;
      } else {
       blue = blue4;
      }
     }
    } else {
     if (blue4 > blue6) {
      blue = blue4;
     } else {
      if (blue5 > blue6) {
       blue = blue6;
      } else {
       blue = blue5;
      }
     }
    }
    pixels[i * iw + j] = alpha << 24 | red << 16 | green << 8 | blue;
   }
  }

  // 将数组中的象素产生一个图像
  return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, pixels, 0, iw));
 }

 /** 线性灰度变换 */
 public BufferedImage lineGrey() {
  PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
  try {
   pg.grabPixels();
  } catch (InterruptedException e) {
   e.printStackTrace();
  }
  // 对图像进行进行线性拉伸，Alpha值保持不变
  ColorModel cm = ColorModel.getRGBdefault();
  for (int i = 0; i < iw * ih; i++) {
   int alpha = cm.getAlpha(pixels[i]);
   int red = cm.getRed(pixels[i]);
   int green = cm.getGreen(pixels[i]);
   int blue = cm.getBlue(pixels[i]);

   // 增加了图像的亮度
   red = (int) (1.1 * red + 30);
   green = (int) (1.1 * green + 30);
   blue = (int) (1.1 * blue + 30);
   if (red >= 255) {
    red = 255;
   }
   if (green >= 255) {
    green = 255;
   }
   if (blue >= 255) {
    blue = 255;
   }
   pixels[i] = alpha << 24 | red << 16 | green << 8 | blue;
  }

  // 将数组中的象素产生一个图像

  return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, pixels, 0, iw));
 }

 /** 转换为黑白灰度图 */
 public BufferedImage grayFilter() {
  ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
  ColorConvertOp op = new ColorConvertOp(cs, null);
  return op.filter(image, null);
 }

 /** 平滑缩放 */
 public BufferedImage scaling(double s) {
  AffineTransform tx = new AffineTransform();
  tx.scale(s, s);
  AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_BILINEAR);
  return op.filter(image, null);
 }

 public BufferedImage scale(Float s) {
  int srcW = image.getWidth();
  int srcH = image.getHeight();
  int newW = Math.round(srcW * s);
  int newH = Math.round(srcH * s);
  // 先做水平方向上的伸缩变换
  BufferedImage tmp=new BufferedImage(newW, newH, image.getType()); 
  Graphics2D g= tmp.createGraphics(); 
  for (int x = 0; x < newW; x++) {
   g.setClip(x, 0, 1, srcH);
   // 按比例放缩
   g.drawImage(image, x - x * srcW / newW, 0, null);
  }

  // 再做垂直方向上的伸缩变换
  BufferedImage dst = new BufferedImage(newW, newH, image.getType()); 
  g = dst.createGraphics();
  for (int y = 0; y < newH; y++) {
   g.setClip(0, y, newW, 1);
   // 按比例放缩
   g.drawImage(tmp, 0, y - y * srcH / newH, null);
  }
  return dst;
 }

}

 

 图形对象之间的转换:

 

/*
 * ImageIOHelper.java
 *
 * Created on December 24, 2007, 1:15 AM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package net.wealthgod.client.center.ocr;

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import java.awt.image.ImageProducer;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.Locale;

import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.stream.ImageOutputStream;
import javax.swing.JOptionPane;

import com.sun.media.imageio.plugins.tiff.TIFFImageWriteParam;

public class ImageIOHelper {

	public ImageIOHelper() {
	}

	public static File createImage(File imageFile, String imageFormat) {
		File tempFile = null;
		try {
			Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName(imageFormat);
			ImageReader reader = readers.next();

			ImageInputStream iis = ImageIO.createImageInputStream(imageFile);
			reader.setInput(iis);
			// Read the stream metadata
			IIOMetadata streamMetadata = reader.getStreamMetadata();

			// Set up the writeParam
			TIFFImageWriteParam tiffWriteParam = new TIFFImageWriteParam(Locale.US);
			tiffWriteParam.setCompressionMode(ImageWriteParam.MODE_DISABLED);

			// Get tif writer and set output to file
			Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("tiff");
			ImageWriter writer = writers.next();

			BufferedImage bi = reader.read(0);
			IIOImage image = new IIOImage(bi, null, reader.getImageMetadata(0));
			tempFile = tempImageFile(imageFile);
			ImageOutputStream ios = ImageIO.createImageOutputStream(tempFile);
			writer.setOutput(ios);
			writer.write(streamMetadata, image, tiffWriteParam);
			ios.close();

			writer.dispose();
			reader.dispose();
		} catch (Exception exc) {
			exc.printStackTrace();
		}
		return tempFile;
	}

	public static File createImage(BufferedImage bi) {
		File tempFile = null;
		try {
			tempFile = File.createTempFile("tempImageFile", ".tif");
			tempFile.deleteOnExit();
			TIFFImageWriteParam tiffWriteParam = new TIFFImageWriteParam(Locale.US);
			tiffWriteParam.setCompressionMode(ImageWriteParam.MODE_DISABLED);

			// Get tif writer and set output to file
			Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("tiff");
			ImageWriter writer = writers.next();

			IIOImage image = new IIOImage(bi, null, null);
			tempFile = tempImageFile(tempFile);
			ImageOutputStream ios = ImageIO.createImageOutputStream(tempFile);
			writer.setOutput(ios);
			writer.write(null, image, tiffWriteParam);
			ios.close();
			writer.dispose();
		} catch (Exception exc) {
			exc.printStackTrace();
		}
		return tempFile;
	}

	public static File tempImageFile(File imageFile) {
		String path = imageFile.getPath();
		StringBuffer strB = new StringBuffer(path);
		strB.insert(path.lastIndexOf('.'), 0);
		return new File(strB.toString().replaceFirst("(?<=\\.)(\\w+)$", "tif"));
	}

	public static BufferedImage getImage(File imageFile) {
		BufferedImage al = null;
		try {
			String imageFileName = imageFile.getName();
			String imageFormat = imageFileName.substring(imageFileName.lastIndexOf('.') + 1);
			Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName(imageFormat);
			ImageReader reader = readers.next();

			if (reader == null) {
				JOptionPane.showConfirmDialog(null,
						"Need to install JAI Image I/O package.\nhttps://jai-imageio.dev.java.net");
				return null;
			}

			ImageInputStream iis = ImageIO.createImageInputStream(imageFile);
			reader.setInput(iis);

			al = reader.read(0);

			reader.dispose();
		} catch (IOException ioe) {
			System.err.println(ioe.getMessage());
		} catch (Exception e) {
			System.err.println(e.getMessage());
		}

		return al;
	}

	public static BufferedImage imageToBufferedImage(Image image) {
		BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null),
				BufferedImage.TYPE_INT_RGB);
		Graphics2D g = bufferedImage.createGraphics();
		g.drawImage(image, 0, 0, null);
		return bufferedImage;
	}

	public static BufferedImage imageProducerToBufferedImage(ImageProducer imageProducer) {
		return imageToBufferedImage(Toolkit.getDefaultToolkit().createImage(imageProducer));
	}

	public static byte[] image_byte_data(BufferedImage image) {
		WritableRaster raster = image.getRaster();
		DataBufferByte buffer = (DataBufferByte) raster.getDataBuffer();
		return buffer.getData();
	}
}

 OCR 调用:

 

/*
 * OCR.java
 *
 * Created on December 24, 2007, 12:38 AM
 */

package net.wealthgod.client.center.ocr;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class OCR {
	protected transient final Logger logger = LoggerFactory.getLogger(this.getClass());
	private final String LANG_OPTION = "-l";
	private final String EOL = System.getProperty("line.separator");
	private String tessPath = new File("tesseract").getAbsolutePath();

	public String recognizeText(File imageFile, String imageFormat) throws Exception {
		File tempImage = ImageIOHelper.createImage(imageFile, imageFormat);

		File outputFile = new File(imageFile.getParentFile(), "output");
		StringBuffer strB = new StringBuffer();

		List<String> cmd = new ArrayList<String>();
		cmd.add(tessPath + "\\tesseract");
		cmd.add("");
		cmd.add(outputFile.getName());
		cmd.add(LANG_OPTION);
		cmd.add("eng");

		ProcessBuilder pb = new ProcessBuilder();
		pb.directory(imageFile.getParentFile());

		cmd.set(1, tempImage.getName());
		pb.command(cmd);
		pb.redirectErrorStream(true);
		Process process = pb.start();

		int w = process.waitFor();
		logger.debug("Exit value = {}", w);

		// delete temp working files
		tempImage.delete();

		if (w == 0) {
			BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(outputFile
					.getAbsolutePath()
					+ ".txt"), "UTF-8"));

			String str;

			while ((str = in.readLine()) != null) {
				strB.append(str).append(EOL);
			}
			in.close();
		} else {
			String msg;
			switch (w) {
			case 1:
				msg = "Errors accessing files. There may be spaces in your image's filename.";
				break;
			case 29:
				msg = "Cannot recognize the image or its selected region.";
				break;
			case 31:
				msg = "Unsupported image format.";
				break;
			default:
				msg = "Errors occurred.";
			}
			tempImage.delete();
			throw new RuntimeException(msg);
		}

		new File(outputFile.getAbsolutePath() + ".txt").delete();
		logger.info("图像识别结果:{}", strB);
		return strB.toString();
	}
}

 

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评论
31 楼 u013562896 2016-09-23  
根本跑步了，代码有问题，差评
30 楼 zxysh10034 2014-12-02  
我的jar包下载了但是运行还是不行，不报错：
Exit value = 0
图像识别结果:{}
29 楼 sun_34 2014-08-12  
大仙帮我看看
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
org.testng.TestNGException:
Cannot instantiate class script.Demo
at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:38)
at org.testng.internal.ClassHelper.createInstance1(ClassHelper.java:387)
at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:299)
at org.testng.internal.ClassImpl.getDefaultInstance(ClassImpl.java:110)
at org.testng.internal.ClassImpl.getInstances(ClassImpl.java:186)
at org.testng.internal.TestNGClassFinder.<init>(TestNGClassFinder.java:120)
at org.testng.TestRunner.initMethods(TestRunner.java:409)
at org.testng.TestRunner.init(TestRunner.java:235)
at org.testng.TestRunner.init(TestRunner.java:205)
at org.testng.TestRunner.<init>(TestRunner.java:160)
at org.testng.remote.RemoteTestNG$1.newTestRunner(RemoteTestNG.java:141)
at org.testng.remote.RemoteTestNG$DelegatingTestRunnerFactory.newTestRunner(RemoteTestNG.java:271)
at org.testng.SuiteRunner$ProxyTestRunnerFactory.newTestRunner(SuiteRunner.java:561)
at org.testng.SuiteRunner.init(SuiteRunner.java:157)
at org.testng.SuiteRunner.<init>(SuiteRunner.java:111)
at org.testng.TestNG.createSuiteRunner(TestNG.java:1299)
at org.testng.TestNG.createSuiteRunners(TestNG.java:1286)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:29)
... 21 more
Caused by: java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder
at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:230)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:112)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:275)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:248)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:261)
at util.OCR.<init>(OCR.java:21)
at script.Demo.<init>(Demo.java:23)
... 26 more
Caused by: java.lang.ClassNotFoundException: org.slf4j.impl.StaticLoggerBinder
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 34 more
28 楼 sun_34 2014-08-12  
我这也报各种异常  希望楼主帮忙
[img][/img]
27 楼 缘来是你 2014-01-09  
Exception in thread "main" java.io.IOException: Cannot run program "D:\Tesseract-OCR\tesseract" (in directory "D:\"): CreateProcess error=5, at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
at com.ocr.OCR.recognizeText(OCR.java:53)
at com.ocr.Test.main(Test.java:9)
Caused by: java.io.IOException: CreateProcess error=5, at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
at java.lang.ProcessImpl.start(ProcessImpl.java:30)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
... 2 more
26 楼 缘来是你 2014-01-09  
IMTI_QQ 写道
运行不了呢。

Exception in thread "main" java.io.IOException: Cannot run program "E:\workspace\workspace_image\image\tesseract\tesseract" (in directory "E:\workspace\workspace_image\imgpro\test"): CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
	at net.wealthgod.client.center.ocr.OCR.recognizeText(OCR.java:51)
	at net.wealthgod.client.center.ocr.OCR.main(OCR.java:96)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessImpl.create(Native Method)
	at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
	at java.lang.ProcessImpl.start(ProcessImpl.java:30)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
	... 2 more

25 楼 jetlyp 2013-03-14  
java.io.IOException: Cannot run program "D:\lypproject\test\tesseract//tesseract" (in directory "D:\temp"): CreateProcess error=5, ???·?
at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
at com.ocr.OCR.recognizeText(OCR.java:81)
at com.ocr.Test.main(Test.java:29)
Caused by: java.io.IOException: CreateProcess error=5, ???·?
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
at java.lang.ProcessImpl.start(ProcessImpl.java:30)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
... 2 more
怎么解决
24 楼 z1721940401 2012-09-30  
rrrrrr
23 楼 niuqiang2008 2012-09-02  
恶风而无法
22 楼 xusong_zidingyi 2012-08-21  
为什么在linux下面运行不可以，报与12楼一样的错误。代码有缺陷。linux是不能执行.exe文件的，只有在windows下面才可以，但是一般程序都是部署在linux下面的。
21 楼 lujiadontcry 2012-05-11  
imageformat
如果填写原始的后缀，jpg的话，填写jpeg等等
陆 Q 66377298（企业短信和彩信）
20 楼 Aryan 2011-11-03  
楼主 加个好友 继续请教
19 楼 lilei9963 2011-11-02  
47845154
18 楼 fan7421436 2011-10-17  
我在JSP中调用的代码是： 
  <%
    	OCR ocr = new OCR();
		File file = new File("http://vote.*****.cn/pic.php");
    	String text = ocr.recognizeText(file,"jpg");
     %>


然后报：
   NullPointerException

com.m0054.entity.OCR.recognizeText(OCR.java:48)
com.sun.imageio.plugins.jpeg.JPEGImageReader.checkTablesOnly(JPEGImageReader.java:309)

com.m0054.entity.ImageIOHelper.createImage(ImageIOHelper.java:53)
com.m0054.entity.OCR.recognizeText(OCR.java:27)

截了几个重要的报错信息出来

我传的参数file文件不能直接用URL地址嘛？
  
17 楼 fan7421436 2011-10-17  
下载了源码 是调用ORCL类里面的recognizeText()方法吗？
   如果是调用recognizeText(File imageFile, String imageFormat)方法，两个参数第一个还懂 第二个参数不知道传什么！
16 楼 javajava22 2011-09-10  
Exception in thread "main" java.lang.RuntimeException: Errors accessing files. There may be spaces in your image's filename.

这个错误是因为 tesseract 路径 问题造成的，最好把 tesseract 写死，就可以了
15 楼 dogg 2011-06-13  
abin7230 写道
需要下载jai_imageio-1.1-alpha.jar， swingx-1.0.jar这两个JAR包吧

是的
14 楼 abin7230 2011-06-10  
需要下载jai_imageio-1.1-alpha.jar， swingx-1.0.jar这两个JAR包吧
13 楼 anyasir 2011-05-31  
什么编码方式？utf8？试了好几个都乱码
12 楼 IMTI_QQ 2011-04-12  
运行不了呢。

Exception in thread "main" java.io.IOException: Cannot run program "E:\workspace\workspace_image\image\tesseract\tesseract" (in directory "E:\workspace\workspace_image\imgpro\test"): CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
	at net.wealthgod.client.center.ocr.OCR.recognizeText(OCR.java:51)
	at net.wealthgod.client.center.ocr.OCR.main(OCR.java:96)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
	at java.lang.ProcessImpl.create(Native Method)
	at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
	at java.lang.ProcessImpl.start(ProcessImpl.java:30)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:452)
	... 2 more
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