Merge remote-tracking branch 'origin/0.8.X' into 0.8.X

This commit is contained in:
2025-08-01 14:21:09 +08:00
3 changed files with 81 additions and 31 deletions

View File

@@ -8,10 +8,15 @@ import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
public class Application {
/**
* @Description: 识别图片中的文字
* @param args
@@ -19,41 +24,47 @@ public class Application {
public static void main(String[] args) {
try {
// 获取本地图片
File file = new File("D:\\桌面\\照片\\11.png");
if (!file.exists()) {
System.err.println("图片文件不存在: " + file.getAbsolutePath());
return;
}
// File file = new File("D:\\test.png");
String imageUrl = "http://47.117.71.33:11296/api/v1/buckets/fadapp-update/objects/download?preview=true&prefix=%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20250731172707.png&version_id=null";
// 读取网络图片为 BufferedImage
URL url = new URL(imageUrl);
InputStream inputStream = url.openStream();
BufferedImage image = ImageIO.read(inputStream);
inputStream.close();
// 预处理图片
BufferedImage bufferedImage = preprocessImage(image);
System.out.println("开始OCR识别...");
System.out.println("图片路径: " + file.getAbsolutePath());
// 创建Tesseract对象
ITesseract tesseract = new Tesseract();
// 设置字体库路径
tesseract.setDatapath("D:\\front");
// 设置字体库路径(绝对路径)
tesseract.setDatapath("D:\\tessdata");
/* File tessdataDir = exportTessdataToTemp(); // 从 classpath 复制到临时目录
tesseract.setDatapath(tessdataDir.getAbsolutePath());*/
// 设置语言简体中文
tesseract.setLanguage("chi_sim");
// 优化OCR配置
tesseract.setPageSegMode(6); // 假设统一的文本块
tesseract.setOcrEngineMode(3); // 使用默认引擎
// 执行OCR识别图片
String result = tesseract.doOCR(file);
String result = tesseract.doOCR(bufferedImage);
System.out.println("\n=== 原始识别结果 ===");
System.out.println(result);
// 清理和格式化结果
String cleanedResult = cleanOcrResult(result);
System.out.println("\n=== 清理后的结果 ===");
System.out.println(cleanedResult);
// 分行显示结果
System.out.println("\n=== 分行显示结果 ===");
String[] lines = cleanedResult.split("-");
@@ -62,7 +73,7 @@ public class Application {
System.out.println((i + 1) + ". " + lines[i].trim());
}
}
} catch (TesseractException e) {
System.err.println("Tesseract OCR错误: " + e.getMessage());
e.printStackTrace();
@@ -71,7 +82,7 @@ public class Application {
e.printStackTrace();
}
}
/**
* 清理OCR识别结果
* @param result 原始识别结果
@@ -81,7 +92,7 @@ public class Application {
if (result == null || result.trim().isEmpty()) {
return "";
}
// 替换常见的OCR错误
String cleaned = result
// 替换回车和换行
@@ -117,10 +128,10 @@ public class Application {
.replaceAll("调教", "调整")
// 移除多余的空格
.trim();
return cleaned;
}
/**
* 图片预处理(可选)
* @param inputFile 输入图片
@@ -129,22 +140,61 @@ public class Application {
private static void preprocessImage(File inputFile, File outputFile) {
try {
BufferedImage image = ImageIO.read(inputFile);
// 转换为灰度图
BufferedImage grayImage = new BufferedImage(
image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
Graphics2D g2d = grayImage.createGraphics();
g2d.drawImage(image, 0, 0, null);
g2d.dispose();
// 保存预处理后的图片
ImageIO.write(grayImage, "png", outputFile);
System.out.println("图片预处理完成: " + outputFile.getAbsolutePath());
} catch (IOException e) {
System.err.println("图片预处理失败: " + e.getMessage());
}
}
/**
* 灰度化图像(直接处理 BufferedImage
* @param image 原始图片
* @return 灰度图
*/
private static BufferedImage preprocessImage(BufferedImage image) {
BufferedImage grayImage = new BufferedImage(
image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
Graphics2D g2d = grayImage.createGraphics();
g2d.drawImage(image, 0, 0, null);
g2d.dispose();
return grayImage;
}
public static File exportTessdataToTemp() throws IOException {
String[] languageFiles = {"chi_sim.traineddata","chi_sim_vert.traineddata"};
// 明确指定临时目录路径(避免路径分隔符问题)
File tempTessdataDir = new File(System.getProperty("java.io.tmpdir"), "tessdata");
if (!tempTessdataDir.exists()) {
tempTessdataDir.mkdirs();
}
ClassLoader classLoader = Application.class.getClassLoader();
for (String filename : languageFiles) {
// 使用正确的资源路径(注意开头的/
try (InputStream in = classLoader.getResourceAsStream("\\tessdata\\" + filename)) {
if (in == null) {
throw new FileNotFoundException("语言包未找到: /tessdata/" + filename);
}
File outFile = new File(tempTessdataDir, filename);
Files.copy(in, outFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
}
}
return tempTessdataDir; // 返回的是 tessdata 目录本身
}
}