苔絲，兩者不會初始化，即使有正確的權限

Question

這裏是目前我在做什麼：

• 苔絲二是建立在我的Android項目

• 我有我的主應用程序（不是tess-two AndroidManifest.xml）的AndroidManifest.xml中指定的權限：

• 我還要檢查權限，明確地在我的代碼：當我運行應用程序

  private void initTess() 
  { 
      // Check we have the eng.traineddata file in the correct place 
      mTessDataPath = getFilesDir() + "/tesseract/"; 
      checkTessFile(new File(mTessDataPath + "tessdata/")); 
  
      // Initialise TessBaseAPI 
      mTess = new TessBaseAPI(); 
      mTess.init(mTessDataPath, "eng"); 
  } 
  
  private void checkTessFile(File dir) 
  { 
      // Check if directory already exists 
      if (dir.exists()) 
      { 
       // Check if file already exists 
       String dataFilePath = mTessDataPath + "tessdata/eng.traineddata"; 
       File datafile = new File(dataFilePath); 
  
       if (!datafile.exists()) 
       { 
        // If file doesn't exist, copy it over from assets folder 
        copyTessFiles(); 
       } 
      } 
      else 
      { 
       if (dir.mkdirs()) 
       { 
        // If directory doesn't exist, but we can create it, copy file from assets folder 
        copyTessFiles(); 
       } 
      } 
  } 
  
  private void copyTessFiles() 
  { 
      try 
      { 
       // Location we want the file to be at 
       String filepath = mTessDataPath + "tessdata/eng.traineddata"; 
  
       // Get access to AssetManager 
       AssetManager assetManager = getAssets(); 
  
       // Open byte streams for reading/writing 
       InputStream instream = assetManager.open("tessdata/eng.traineddata"); 
       OutputStream outstream = new FileOutputStream(filepath); 
  
       // Copy the file to the location specified by filepath 
       byte[] buffer = new byte[1024]; 
       int read; 
       while ((read = instream.read(buffer)) != -1) 
       { 
        outstream.write(buffer, 0, read); 
       } 
       outstream.flush(); 
       outstream.close(); 
       instream.close(); 
      } 
      catch (FileNotFoundException e) 
      { 
       e.printStackTrace(); 
      } 
      catch (IOException e) 
      { 
       e.printStackTrace(); 
      } 
  } 
  
  @Override 
  public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) 
  { 
      switch (requestCode) 
      { 
       case REQUEST_EXTERNAL_STORAGE: 
       { 
        if (grantResults.length > 0 
          && grantResults[0] == PackageManager.PERMISSION_GRANTED) 
        { 
         // Initialise Tesseract API 
         initTess(); 
        } 
  
        return; 
       } 
      } 
  } 
  

：

int readPermission = ActivityCompat.checkSelfPermission(this, READ_EXTERNAL_STORAGE); 
int writePermission = ActivityCompat.checkSelfPermission(this, WRITE_EXTERNAL_STORAGE); 

// Check we have both read and write permissions 
if (readPermission != PackageManager.PERMISSION_GRANTED 
     || writePermission != PackageManager.PERMISSION_GRANTED) 
{ 
    // We don't have permission so prompt the user 
    ActivityCompat.requestPermissions(
      this, 
      new String[] {READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE}, 
      REQUEST_EXTERNAL_STORAGE 
    ); 
} 
else 
{ 
    Log.d(TAG, "Read and write external permissions granted"); 
    initTess(); 
} 

嘗試初始化TessBaseAPI ，我在我的中得到以下錯誤日誌：

E/Tesseract(native): Could not initialize Tesseract API with language=eng! 

我不知道在哪裏，從這裏走，所以任何幫助或提醒會非常感激，謝謝:)

Answer 1

確保您使用的training data files的正確版本。