android tess-two OCR speed up and error

Question

The OCR in my application is very slow

How can I speed up my application

and I have some error when the code executes

This is my code of OCR

public class ProcessImage extends AsyncTask<String,String, String> {
    String OCRresult = null;

    @Override
    protected String doInBackground(String... args) {


        try {

            mTess.setImage(OCR.image);
            OCRresult = mTess.getUTF8Text();
            mTess.end();
            mTess.clear();

        } catch (RuntimeException e) {
            Log.e("OcrRecognizeAsyncTask",
                    "Caught RuntimeException in request to Tesseract. Setting state to CONTINUOUS_STOPPED.",
                    e);

            try {

            } catch (NullPointerException e1) {
                // Continue
            }
            return null;
        }

        return "Executed";
    }

    @Override
    protected void onPostExecute(String result) {
        TextView txt = (TextView) findViewById(OCRTextView);
        txt.setText("請按返回"); // txt.setText(result);
        if(OCRresult!=null) {
            txt.setText(OCRresult);
        }
        // might want to change "executed" for the returned string passed
        // into onPostExecute() but that is upto you
    }

    @Override
    protected void onPreExecute() {}



}

This the error when code executes

This the error when code executes

Answer 1

You can not call clear() after end(). If you want to speed up the detection check the image size and play with the detector params and detection modes.

Good luck.