When I recognize text from the ABBYY business card it works. When I try it with a photo I took it failed. It does works on the demo from ABBYY so it's not my hardware.
Does anyone know why this is?
Code I use to take a photo:
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUESTCODE_PHOTO);
if(requestCode == REQUESTCODE_PHOTO){
if( resultCode == Activity.RESULT_OK){
RecognizerManager.recognizeText((Bitmap)data.getExtras().get("data"), this);
}
}
public static void recognizeText(final Bitmap bitmap, final RecognitionCallback listener){
RecognitionConfiguration config = new RecognitionConfiguration();
config.setRecognitionLanguages(Engine.getInstance().getLanguagesAvailableForOcr());
config.setRecognitionMode(RecognitionMode.FULL);
config.setImageProcessingOptions(RecognitionConfiguration.ImageProcessingOptions.FIND_ALL_TEXT);
RecognitionManager recManager = Engine.getInstance().getRecognitionManager(config);
try {
Object o = recManager.recognizeText(bitmap, listener);
Log.i("RESULT!", o.toString());
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (RecognitionFailedException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
I got it to work using this following code.
Photo taking in my RecognizeActivy:
final File photo = new File( Environment.getExternalStorageDirectory(), genPhotoFileName() );
RecognizeActivity.this.imageUri = Uri.fromFile( photo );
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE)
.putExtra( MediaStore.EXTRA_OUTPUT, imageUri );
startActivityForResult(intent, REQUESTCODE_PHOTO);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == REQUESTCODE_PHOTO){
if( resultCode == Activity.RESULT_OK){
if(this.imageUri != null){
try{
final AssetFileDescriptor assetFileDescriptor =
getApplicationContext().getContentResolver().openAssetFileDescriptor(this.imageUri, "r" );
long imageFileSize = assetFileDescriptor.getLength();
if( imageFileSize == AssetFileDescriptor.UNKNOWN_LENGTH ) {
throw new IOException( "UNKNOWN_LENGTH" );
}
InputStream is = assetFileDescriptor.createInputStream();
byte[] imageData = new byte[(int) imageFileSize];
is.read( imageData );
if(this.bitmap != null){
this.bitmap.recycle();
this.bitmap = null;
System.gc();
}
this.bitmap = BitmapFactory.decodeByteArray( imageData, 0, (int) imageFileSize, new Options() );
RecognizerManager.recognizeText(this.bitmap, this);
} catch(Exception e){
e.printStackTrace();
}
} else{
Log.e("ERROR", "img = null");
}
}
}
}
I'm recycling the bitmap because if I don't I get an OutOfMemory Exception after taking a few photo's.
Photo processing:
public static void recognizeText(final Bitmap bitmap, final RecognitionCallback progressListener){
final RecognitionConfiguration config = new RecognitionConfiguration();
config.setImageResolution(0);
config.setImageProcessingOptions( RecognitionConfiguration.ImageProcessingOptions.PROHIBIT_VERTICAL_CJK_TEXT);
for(RecognitionLanguage e : Engine.getInstance().getLanguagesAvailableForOcr()){
if(e.equals(RecognitionLanguage.English) || e.equals(RecognitionLanguage.Dutch)){
final Set<RecognitionLanguage> languages = EnumSet.noneOf( RecognitionLanguage.class );
languages.add(e);
config.setRecognitionLanguages(languages);
}
}
RecognitionManager recManager = Engine.getInstance().getRecognitionManager(config);
try {
Object o = recManager.recognizeText(bitmap, progressListener);
Log.i("RESULT!", o.toString());
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (RecognitionFailedException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}