tessdata supports both legacy engine and lstm engine. Tessdata_fast and
tessdata_best only support lstm engine.

To use tessdata_fast , use oem engine code 1.

On command line it is --oem 1.please look up the corresponding syntax.

On Sat, Dec 7, 2019, 14:06 NY C <nyc0...@gm.nkhs.tp.edu.tw> wrote:

> Hi, I am using tess-two for OCR.
>
>
> The version I use is : https://github.com/alexcohn/tess-two
>
>
> Code:
>
>         TessBaseAPI baseApi = new TessBaseAPI();
>         baseApi.setDebug(true);
>         baseApi.init(pathfiles, language);
>         baseApi.setVariable(TessBaseAPI.VAR_CHAR_WHITELIST, "0123456789");
>         baseApi.setPageSegMode(TessBaseAPI.PageSegMode.PSM_AUTO);
>         baseApi.setImage(bmp);
>         result= baseApi.getUTF8Text();
>         baseApi.end();
>
>
> The code run perfectly when I use this tessdata :
> https://github.com/tesseract-ocr/tessdata
>
>
> But when I use tessdata_fast (
> https://github.com/tesseract-ocr/tessdata_fast), The code crashes on
> baseApi.init.
>
>
> There is no error message since the init method calls native C++. As far
> as I can trace, the init method crashes on this line:
>
>
> boolean success = nativeInitOem(mNativeData, datapath, language, 
> ocrEngineMode);
>
>
> Is it possible to use tessdata_fast in tess-two?
>
> Or did I miss something?
>
>
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