ocr используя тессеракт в андроиде - PullRequest
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ocr используя тессеракт в андроиде

0 голосов
/ 09 ноября 2019

Я пытаюсь создать приложение OCR на Android, используя Tesseract, но когда я сохраняю картинку, приложение обрушивается

Вот код, который я использую: 

public class MainActivity extends AppCompatActivity {

    Bitmap image;
    private TessBaseAPI mTess;
    String datapath = "";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //init image
        image = BitmapFactory.decodeResource(getResources(), R.drawable.test_ara);

        //initialize Tesseract API
        String language = "ra";
        datapath = getFilesDir()+ "/tesseract/";
        mTess = new TessBaseAPI();

        checkFile(new File(datapath + "tessdata/"));

        mTess.init(datapath, language);
    }

    public void processImage(View view){
        String OCRresult = null;
        mTess.setImage(image);
        OCRresult = mTess.getUTF8Text();
        TextView OCRTextView = (TextView) findViewById(R.id.OCRTextView);
        OCRTextView.setText(OCRresult);
    }

    private void checkFile(File dir) {
        if (!dir.exists()&& dir.mkdirs()){
            copyFiles();
        }
        if(dir.exists()) {
            String datafilepath = datapath+ "/tessdata/ara.traineddata";
            File datafile = new File(datafilepath);

            if (!datafile.exists()) {
                copyFiles();
            }
        }
    }

    private void copyFiles() {
        try {
            String filepath = datapath + "/tessdata/ara.traineddata";
            AssetManager assetManager = getAssets();

            InputStream instream = assetManager.open("tessdata/ara.traineddata");
            OutputStream outstream = new FileOutputStream(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();

            File file = new File(filepath);
            if (!file.exists()) {
                throw new FileNotFoundException();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

и это ошибка журнала: 

2019-11-09 12:31:15.792 10381-10381/? E/e.myapplicatio: No implementation found for void com.example.myapplication.googlecode.tesseract.android.TessBaseAPI.nativeClassInit() (tried Java_com_example_myapplication_googlecode_tesseract_android_TessBaseAPI_nativeClassInit and Java_com_example_myapplication_googlecode_tesseract_android_TessBaseAPI_nativeClassInit__)
2019-11-09 12:31:15.793 10381-10381/? D/AndroidRuntime: Shutting down VM
2019-11-09 12:31:15.795 10381-10381/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.myapplication, PID: 10381
    java.lang.UnsatisfiedLinkError: No implementation found for void com.example.myapplication.googlecode.tesseract.android.TessBaseAPI.nativeClassInit() (tried Java_com_example_myapplication_googlecode_tesseract_android_TessBaseAPI_nativeClassInit and Java_com_example_myapplication_googlecode_tesseract_android_TessBaseAPI_nativeClassInit__)
        at com.example.myapplication.googlecode.tesseract.android.TessBaseAPI.nativeClassInit(Native Method)
        at com.example.myapplication.googlecode.tesseract.android.TessBaseAPI.<clinit>(TessBaseAPI.java:50)
        at com.example.myapplication.MainActivity.onCreate(MainActivity.java:40)
        at android.app.Activity.performCreate(Activity.java:7335)
        at android.app.Activity.performCreate(Activity.java:7326)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1275)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3119)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3282)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1970)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7156)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:975)

Пожалуйста, помогите мне в этом.

Спасибо.

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