通过OCR Tesseract从Image中提取文本 - 错误：无法在baseApi.ini上找到源文件

Question

I try to run a simple OCR with tessera. My image is very simple as shown below:

So if it works fine, the output is an extracted text as: SONY TV ...

When I run the program on Android, I get the following problem with line: baseApi.init(myDir, "eng");

as it says it couldn't find the source but as shown in the image it is in tssD/tessdata/eng.traineddata.

Here is my original code:

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        String myDir= "tssD/tessdata/eng.traineddata";
        String imagePath = "myImages/Remote1.bmp";

        ImageView image = (ImageView) findViewById(R.id.imageView1);
        Bitmap bMap = BitmapFactory.decodeFile(imagePath);

        TessBaseAPI baseApi = new TessBaseAPI();
        baseApi.init(myDir, "eng"); 
        baseApi.setImage(bMap);
        String recognizedText = baseApi.getUTF8Text(); 
        EditText text = (EditText) findViewById(R.id.editText1);
        text.setText(recognizedText);   
        image.setImageBitmap(bMap);
        baseApi.end();
    }

Answer 1

The tssD folder will not be built into your APK and will not be installed on your device. If you want to include miscellaneous files with your APK, you'll need to put them into assets or res/raw.

You can open a file in assets for reading with something like:

InputStream input = assetManager.open("sample.txt");

The reference page for the AssetManager is here .