<服务器端>OCR识别 .条形码识别，解析条形码并返回商品信息

原文参考地址：http://www.myexception.cn/image/763476.html

使用tesseract进行识  windows环境 64位 32位均可

tesseract安装到http://code.google.com/p/tesseract-ocr/下载 tesseract-ocr-setup-3.02.02.exe并安装，默认安装目录

工程下载地址：http://download.csdn.net/detail/b275518834/6019471

导入工程

修改CMD_OCR类中

tesseract = "C:\\Program Files (x86)\\Tesseract-OCR";默认目录

http://pc-20130624xrqe:8080/MyServlet/改成你的地址

OCR测试
http://pc-20130624xrqe:8080/MyServlet/OCR_ResolutionCode?img=http://t1.qpic.cn/mblogpic/41e82ee272e9b04c1352/2000.jpg
条形码测试
http://pc-20130624xrqe:8080/MyServlet/Zxing_ResolutionCode?img=http://t1.qpic.cn/mblogpic/f58a315bf7c1b1a9ef86/2000.jpg&des=true

package com.cn.myservlet;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import myjava.utils.strings.UnicodeEncoding;
import myjava.utils.url.SearchBarcodeDec;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import com.google.zxing.utils.ZxingEAN13DecoderHandler;
import commons.utils.UpLoadFileHelper;

public class Zxing_UpLoadFile extends HttpServlet {

	// 下面的代码开始使用Commons-UploadFile组件处理上传的文件数据
	private static FileItemFactory factory = new DiskFileItemFactory(); // 建立FileItemFactory对象
	private static ServletFileUpload upload = new ServletFileUpload(factory);


	protected void service(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		System.err.println("新请求");


		request.setCharacterEncoding("UTF-8"); // 设置处理请求参数的编码格式
		response.setContentType("text/html;charset=UTF-8"); // 设置Content-Type字段值
		try {
			// 获得附加信息
			String type = URLEncoder.encode(request.getParameter("msg"),
					"UTF-8");
		} catch (Exception e1) {

		}
		File uploadFile=null;
		try {
			uploadFile = new UpLoadFileHelper(this)
					.saveAndGetFile(request);
			String code = new ZxingEAN13DecoderHandler()
					.decode(uploadFile);
			System.err.println("解码内容如下：");
			System.err.println(code);
			ServletOutputStream os = response.getOutputStream();
			PrintWriter pw = new PrintWriter(os);
			if(code==null)
			{
				code="can't parse img";
			}else
			{
				System.err.println(code);
				try {
					code=new SearchBarcodeDec().search(code).toString();
					code=new UnicodeEncoding().chinaToUnicode(code);
				} catch (Exception e) {
					//code="code can't found";
				}
			
			}
			pw.write(code);
			pw.flush();
			pw.close();

		} catch (FileUploadException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
		if(uploadFile!=null&&uploadFile.exists())
		{
			uploadFile.delete();
		}

	}


}

package com.google.zxing.utils;
/*
 * Copyright 2009 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */



import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;

import com.google.zxing.LuminanceSource;

/**
 * This LuminanceSource implementation is meant for J2SE clients and our blackbox unit tests.
 *
 * @author [email protected] (Daniel Switkin)
 * @author Sean Owen
 * @author [email protected] (Wolfgang Jung)
 */
public final class BufferedImageLuminanceSource extends LuminanceSource {

  private static final double MINUS_45_IN_RADIANS = -0.7853981633974483; // Math.toRadians(-45.0)

  private final BufferedImage image;
  private final int left;
  private final int top;

  private static final boolean EXPLICIT_LUMINANCE_CONVERSION;
  static {
    String property = System.getProperty("explicitLuminanceConversion");
    if (property == null) {
      property = System.getenv("EXPLICIT_LUMINANCE_CONVERSION");
    }
    EXPLICIT_LUMINANCE_CONVERSION = Boolean.parseBoolean(property);
  }

  public BufferedImageLuminanceSource(BufferedImage image) {
    this(image, 0, 0, image.getWidth(), image.getHeight());
  }

  public BufferedImageLuminanceSource(BufferedImage image, int left, int top, int width, int height) {
    super(width, height);

    if (image.getType() == BufferedImage.TYPE_BYTE_GRAY) {
      this.image = image;
    } else {
      int sourceWidth = image.getWidth();
      int sourceHeight = image.getHeight();
      if (left + width > sourceWidth || top + height > sourceHeight) {
        throw new IllegalArgumentException("Crop rectangle does not fit within image data.");
      }

      this.image = new BufferedImage(sourceWidth, sourceHeight, BufferedImage.TYPE_BYTE_GRAY);

      if (EXPLICIT_LUMINANCE_CONVERSION) {

        WritableRaster raster = this.image.getRaster();
        int[] buffer = new int[width];
        for (int y = top; y < top + height; y++) {
          image.getRGB(left, y, width, 1, buffer, 0, sourceWidth);
          for (int x = 0; x < width; x++) {
            int pixel = buffer[x];

            // see comments in implicit branch
            if ((pixel & 0xFF000000) == 0) {
              pixel = 0xFFFFFFFF; // = white
            }

            // .229R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC)
            buffer[x] =
                (306 * ((pixel >> 16) & 0xFF) +
                 601 * ((pixel >> 8) & 0xFF) +
                 117 * (pixel & 0xFF) +
                 0x200) >> 10;
          }
          raster.setPixels(left, y, width, 1, buffer);
        }

      } else {

        // The color of fully-transparent pixels is irrelevant. They are often, technically, fully-transparent
        // black (0 alpha, and then 0 RGB). They are often used, of course as the "white" area in a
        // barcode image. Force any such pixel to be white:
        if (image.getAlphaRaster() != null) {
          int[] buffer = new int[width];
          for (int y = top; y < top + height; y++) {
            image.getRGB(left, y, width, 1, buffer, 0, sourceWidth);
            boolean rowChanged = false;
            for (int x = 0; x < width; x++) {
              if ((buffer[x] & 0xFF000000) == 0) {
                buffer[x] = 0xFFFFFFFF; // = white
                rowChanged = true;
              }
            }
            if (rowChanged) {
              image.setRGB(left, y, width, 1, buffer, 0, sourceWidth);
            }
          }
        }

        // Create a grayscale copy, no need to calculate the luminance manually
        this.image.getGraphics().drawImage(image, 0, 0, null);

      }
    }
    this.left = left;
    this.top = top;
  }

  @Override
  public byte[] getRow(int y, byte[] row) {
    if (y < 0 || y >= getHeight()) {
      throw new IllegalArgumentException("Requested row is outside the image: " + y);
    }
    int width = getWidth();
    if (row == null || row.length < width) {
      row = new byte[width];
    }
    // The underlying raster of image consists of bytes with the luminance values
    image.getRaster().getDataElements(left, top + y, width, 1, row);
    return row;
  }

  @Override
  public byte[] getMatrix() {
    int width = getWidth();
    int height = getHeight();
    int area = width * height;
    byte[] matrix = new byte[area];
    // The underlying raster of image consists of area bytes with the luminance values
    image.getRaster().getDataElements(left, top, width, height, matrix);
    return matrix;
  }

  @Override
  public boolean isCropSupported() {
    return true;
  }

  @Override
  public LuminanceSource crop(int left, int top, int width, int height) {
    return new BufferedImageLuminanceSource(image, this.left + left, this.top + top, width, height);
  }

  /**
   * This is always true, since the image is a gray-scale image.
   *
   * @return true
   */
  @Override
  public boolean isRotateSupported() {
    return true;
  }

  @Override
  public LuminanceSource rotateCounterClockwise() {
    int sourceWidth = image.getWidth();
    int sourceHeight = image.getHeight();

    // Rotate 90 degrees counterclockwise.
    AffineTransform transform = new AffineTransform(0.0, -1.0, 1.0, 0.0, 0.0, sourceWidth);

    // Note width/height are flipped since we are rotating 90 degrees.
    BufferedImage rotatedImage = new BufferedImage(sourceHeight, sourceWidth, BufferedImage.TYPE_BYTE_GRAY);

    // Draw the original image into rotated, via transformation
    Graphics2D g = rotatedImage.createGraphics();
    g.drawImage(image, transform, null);
    g.dispose();

    // Maintain the cropped region, but rotate it too.
    int width = getWidth();
    return new BufferedImageLuminanceSource(rotatedImage, top, sourceWidth - (left + width), getHeight(), width);
  }

  public LuminanceSource rotateCounterClockwise45() {
    int width = getWidth();
    int height = getHeight();

    int oldCenterX = left + width / 2;
    int oldCenterY = top + height / 2;

    // Rotate 45 degrees counterclockwise.
    AffineTransform transform = AffineTransform.getRotateInstance(MINUS_45_IN_RADIANS, oldCenterX, oldCenterY);

    int sourceDimension = Math.max(image.getWidth(), image.getHeight());
    BufferedImage rotatedImage = new BufferedImage(sourceDimension, sourceDimension, BufferedImage.TYPE_BYTE_GRAY);

    // Draw the original image into rotated, via transformation
    Graphics2D g = rotatedImage.createGraphics();
    g.drawImage(image, transform, null);
    g.dispose();

    int halfDimension = Math.max(width, height) / 2;
    int newLeft = Math.max(0, oldCenterX - halfDimension);
    int newTop = Math.max(0, oldCenterY - halfDimension);
    int newRight = Math.min(sourceDimension - 1, oldCenterX + halfDimension);
    int newBottom = Math.min(sourceDimension - 1, oldCenterY + halfDimension);

    return new BufferedImageLuminanceSource(rotatedImage, newLeft, newTop, newRight - newLeft, newBottom - newTop);
  }

}

package com.google.zxing.utils;

import java.awt.image.BufferedImage;    
import java.io.File;    
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.net.URL;
    
import javax.imageio.ImageIO;    
    
import com.google.zxing.BinaryBitmap;    
import com.google.zxing.LuminanceSource;    
import com.google.zxing.MultiFormatReader;    
import com.google.zxing.Result;    
import com.google.zxing.common.HybridBinarizer;    
    
/**  
 * @blog http://sjsky.iteye.com  
 * @author Michael  
 */    
public class ZxingEAN13DecoderHandler {    
    
    /**  
     * @param imgPath  
     * @return String  
     */    
    public String decode(String imgPath) {      
        return decode(new File(imgPath));       
    }    
    
    public String decode(File f) {    
        try {
			return decode(new FileInputStream(f));
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;   
    }    
    public String decode(InputStream in) {    
        BufferedImage image = null;    
        Result result = null;    
        try {    
            image = ImageIO.read(in);  
            
            if (image == null) {    
                System.out.println("the decode image may be not exit.");    
            }    
            
            LuminanceSource source = new BufferedImageLuminanceSource(image);    
            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));    
    
            result = new MultiFormatReader().decode(bitmap, null);    
            return result.getText();    
        } catch (Exception e) {    
            e.printStackTrace();    
        }    
        return null;    
    }    
    public String decode(URL url) {    
        BufferedImage image = null;    
        Result result = null;    
        try {    
            image = ImageIO.read(url);  
            
            if (image == null) {    
                System.out.println("the decode image may be not exit.");    
            }    
            
            LuminanceSource source = new BufferedImageLuminanceSource(image);    
            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));    
    
            result = new MultiFormatReader().decode(bitmap, null);    
            return result.getText();    
        } catch (Exception e) {    
            e.printStackTrace();    
        }    
        return null;    
    }    
    
 
}   

package tesseract;

import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import myjava.utils.img.BufferedImageHandler;
import myjava.utils.img.ImageIOHelper;
import myjava.utils.img.ImageType;

import org.apache.commons.lang.StringUtils;

public class CMD_OCR implements Runnable {

	/** 回调接口 */
	private CMD_CallBack callBack;
	/** tesseract 主程序目录 */
	public static String tesseract;
	static {
		// String exePath = StringUtils.replace(
		// CMD_OCR.class.getResource("tesseract.exe").getPath(), "%20", " ")
		// .substring(1);
		// tesseract = exePath.substring(0, exePath.lastIndexOf("/"));
		tesseract = "C:\\Program Files (x86)\\Tesseract-OCR";
		System.err.println("初始化 OCR目录--" + tesseract);

	}

	public String getTxt() {
		return txt;
	}

	public void setTxt(String txt) {
		this.txt = txt;
	}

	public String getResult() {
		return result;
	}

	public void setResult(String result) {
		this.result = result;
	}

	/** 结果缓存文本 */
	public String txt;
	/** 想要处理的文件 */
	public String img;
	/** 最终结果 */
	public String result;

	private File temp_img = null;
	private File temp_txt = null;
	private BufferedReader br;

	private String encding = "chi_sim";
	private BufferedImageHandler bih;

	public CMD_OCR(String img, CMD_CallBack callback) {
		super();
		this.img = img;
		this.callBack = callback;
		this.txt = new File(img).getName();
	}

	public CMD_OCR(String img, CMD_CallBack callback, String encding,
			BufferedImageHandler bih) {
		super();
		this.img = img;
		this.callBack = callback;
		this.txt = new File(img).getName();
		this.encding = encding;
		this.bih = bih;
	}

	public void run() {

		// 将文件进行锐化高清处理
		/*****/
		try {
	
			// 将文件转化为tiff格式
			temp_img = getTiffImg(new File(img));

			// 执行cmd指令
			temp_txt = getCmdFile(temp_img);

			result = getTxtContent(temp_txt);
			if (callBack != null) {
				callBack.callBack(result);
			}
			System.err.println("OCR code=" + result);

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		destory();

	}

	private void destory() {
		try {
			if (temp_img != null && temp_img.exists())
				temp_img.delete();
			if (temp_txt != null && temp_txt.exists())
				temp_txt.delete();
			if (br != null)
				try {
					br.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

	private String getTxtContent(File temp_txt) throws IOException {
		br = new BufferedReader(new InputStreamReader(new FileInputStream(
				temp_txt), "utf-8"));
		StringBuffer sb = new StringBuffer();
		String str;
		while ((str = br.readLine()) != null) {
			sb.append(str);
		}
		br.close();
		return sb.toString();

	}

	private File getCmdFile(File temp_img) throws Exception {
		List<String> cmd = new ArrayList<String>();
		cmd.add(tesseract + "\\tesseract");
		cmd.add(temp_img.getPath());
		cmd.add(txt);
		cmd.add("-l");
		// cmd.add("eng");
		cmd.add(encding);
		System.out.println(temp_img.getPath());
		ProcessBuilder pb = new ProcessBuilder();
		pb.directory(new File(tesseract));

		System.out.println(cmd.toString());
		ProcessBuilder obj = pb.command(cmd);
		pb.redirectErrorStream(true);

		Process process = pb.start();
		// any error message?
		CMD_Print errorGobbler = new CMD_Print(process.getErrorStream(),
				"ERROR");

		// any output?
		CMD_Print outputGobbler = new CMD_Print(process.getInputStream(),
				"OUTPUT");

		// kick them off
		errorGobbler.start();
		outputGobbler.start();

		int code = process.waitFor();
		process.destroy();
		String msg = null;
		switch (code) {
		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.";
		}
		System.out.println(msg);
		if (code != 0) {
			throw new Exception(msg);
		}

		return new File(tesseract + "\\" + txt + ".txt");
	}

	private File getTiffImg(File img) {

		return new ImageIOHelper(bih).createImage(img,
				ImageType.getFormatInFile(img));

	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		CMD_OCR ocr = new CMD_OCR("C:\\Tesseract-OCR\\IMG_20130821_134512.jpg",
				null);
		new Thread(ocr).start();

	}

}

工程下载地址：http://download.csdn.net/detail/b275518834/6019471