im trying to get text from an image using tess-two on android.
But its giving me a really bad result
01-16 12:00:25.339: I/Tesseract(native)(29038): Initialized Tesseract API with language=spa
and like 30 seconds later it shows this as result string:
{ga
.,
r¿
y“: A
r M í
:3
' ‘Ev’.-:.. -: A 7
» w- ?" _
Á.» ¿"A ¿rw-V r
mjÏfn 'n’n . Y
' "\'ZA".‘.¡ A‘ :‘ïvAv- « ‘
:"Éf‘Ï'" -Ï«l :‘,.v:...»- .
' RFI' .. ’ g)" 3;:- 1-;4',
= * ¿,arifgggk mw; .1. ,
' "53» "J
't‘ ‘ ¿Las ;.‘».L',-‘»
' ' 'N‘“ "“=: - '. V . ‘9!
5.? ' “F a .“
Y , <_ 7- . 7.-, .
;« z "1:;2wr . A - . ' -»‘ 5“:
“4-”, ¿rn 73:33: w v'.‘ ¿a ‘ A ,z, v VA
...,,« ' 'Q ' ‘ 4 214€. 5 . AV ¿JL y .13:
1 » . 21mm; » ¿ati-“fl ¿ab-1377*“ w”
. x ‘ ‘ ú F v'v:
1 . ' . ; (“ya í .
of course thats not correct, im using this photo:
i have tried it a lot of times, always similar result.
What can be wrong, this is my code using tess-two
TessBaseAPI baseApi = new TessBaseAPI();
baseApi.init("/mnt/sdcard/external_sd/tess/", "spa",TessBaseAPI.OEM_TESSERACT_ONLY);
baseApi.setImage(bitmap);
String recognizedText = baseApi.getUTF8Text();
Log.d("Texto leido", "texto: "+recognizedText);
baseApi.end();
and this is how i get bitmap from file
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap bitmap = BitmapFactory.decodeFile(photopath.getAbsolutePath(), options);
im using that bitmap on a imageview and it seems correct, so i cant find why its working that bad.
Any idea?
Here change the language code for image text language.
eg: if you want English language text recognition, then use 'eng', or Spanish language for 'spa'
1)
TessBaseAPI baseApi = new TessBaseAPI();
baseApi.init("/mnt/sdcard/external_sd/tess/", "eng");
baseApi.setImage(bitmap);
String recognizedText = baseApi.getUTF8Text();
Log.d("Texto leido", "texto: "+recognizedText);
baseApi.end();
2)Download language package files from Download here you must download osd.traineddata.zip file and tesseract-ocr-3.01.eng.tar.zip(here eng for English, spa for Spanish.. etc) files paste into assets folder.
3)before set bitmap convert into gray scale image bitmap
来源:https://stackoverflow.com/questions/21161352/tess-two-ocr-not-working