Tesseract-OCR安装
Tesseract-OCR下载地址：/UB-Mannheim/tesseract/wiki，下载tesseract安装包
安装tesseract，双击进行运行安装。全部点next就行。自己选择安装的位置
配置tesseract环境变量
系统环境变量–>path，添加Tesseract-OCR的路径位置
系统变量–>新建
变量名：TESSDATA_PREFIX
变量值:D:\java工具\Tesseract-ocr\tessdata 你Tesseract安装的位置我是默认的安装位置
这一步是添加Tesseract-OCR的语言库，语言库地址：/tesseract-ocr/tessdata。你还可以根据实际情况去自己训练自己的语言
Tesseract-ORC与java代码结合。截图获取图片中信息。不截屏可以直接换成图片地址。
import javax.imageio.ImageIO;import java.awt.*;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;public class xxx {public static void main(String[] args) {try {jp();//图片文件：此图片是需要被识别的图片File file = new File("D:\\java工具\\Tesseract-ocr\\tessdata\\图片\\test.png");System.out.println("begin.........");String recognizeText1 = new test01().recognizeText(file);System.out.print(recognizeText1+"\t");} catch (IOException e) {e.printStackTrace();} catch (Exception e) {e.printStackTrace();}}//截屏public static void jp(){Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();// 创建需要截取的矩形区域Rectangle rect = new Rectangle(0, 0, screenSize.width, screenSize.height);// 截屏操作BufferedImage bufImage = null;try {bufImage = new Robot().createScreenCapture(rect); //存入截图if (ImageIO.write(bufImage, "PNG", new File("D:\\java工具\\Tesseract-ocr\\tessdata\\图片\\test.png"))) {System.out.println("截屏成功");}} catch (Exception e) {throw new RuntimeException(e);}}}
调用下面的test01方法，进行读取数据
import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;public class test01 {private final String LANG_OPTION = "-l";private final String EOL = System.getProperty("line.separator");/*** Tesseract-OCR的安装路径*/private String tessPath = "D://java工具//Tesseract-ocr";/*** @param imageFile 传入的图像文* @return 识别后的字符串*/public String recognizeText(File imageFile) throws Exception {/*** 设置输出文件的保存的文件目录，创建output文件夹*/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+"\\"+outputFile.getName());cmd.add(LANG_OPTION);// cmd.add("chi_sim");// 切换中文识别语言或者你自己训练的语言cmd.add("eng");ProcessBuilder pb = new ProcessBuilder();pb.directory(new File(tessPath));cmd.set(1, imageFile.getParentFile()+"\\"+imageFile.getName());mand(cmd);pb.redirectErrorStream(true);long startTime = System.currentTimeMillis();System.out.println("开始时间：" + startTime);Process process = pb.start();/**/int w = process.waitFor();if (w == 0)// 0代表正常退出{BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(outputFile+"\\"+outputFile.getName()+".txt"),"UTF-8"));String str;while ((str = in.readLine()) != null) {strB.append(str).append(EOL);}in.close();long endTime = System.currentTimeMillis();System.out.println("结束时间：" + endTime);System.out.println("耗时：" + (endTime - startTime) + "毫秒");} 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.";}throw new RuntimeException(msg);}// 删除生成的文件new File(outputFile+"\\"+outputFile.getName()+".txt").delete();return strB.toString().replaceAll("\\s*", "");}}
结果：
