I see, I admire the work of tess-two.
Which is very helpful for people developing Android application.
Hopefully, there will be able to use tess_fast and tess_best in tess-two.


Quan Nguyen於 2019年12月10日星期二 UTC+8上午9時28分56秒寫道:
>
> Not bug; just not up to date with Tesseract 4.x.
>
> On Monday, December 9, 2019 at 12:14:49 AM UTC-6, NY C wrote:
>>
>> I know there are new OcrEngineMode value in Tesseract.
>> But not in tess-two.
>>
>> In tesseract 4.x, ocrEngineMode is :
>>
>> enum OcrEngineMode {
>>   OEM_TESSERACT_ONLY,           // Run Tesseract only - fastest; 
>> deprecated
>>   OEM_LSTM_ONLY,                // Run just the LSTM line recognizer.
>>   OEM_TESSERACT_LSTM_COMBINED,  // Run the LSTM recognizer, but allow 
>> fallback
>>                                 // to Tesseract when things get difficult.
>>                                 // deprecated
>>   OEM_DEFAULT,                  // Specify this mode when calling 
>> init_*(),
>>                                 // to indicate that any of the above modes
>>                                 // should be automatically inferred from 
>> the
>>                                 // variables in the language-specific 
>> config,
>>                                 // command-line configs, or if not 
>> specified
>>                                 // in any of the above should be set to 
>> the
>>                                 // default OEM_TESSERACT_ONLY.
>>   OEM_COUNT                     // Number of OEMs
>> };
>>
>> However, in the newest release of tess-two, the ocrEngineMode is :
>>
>>     @IntDef({OEM_TESSERACT_ONLY, OEM_CUBE_ONLY, 
>> OEM_TESSERACT_CUBE_COMBINED, OEM_DEFAULT})
>>     public @interface OcrEngineMode {}
>>     public static final int OEM_TESSERACT_ONLY = 0;
>>     @Deprecated
>>     public static final int OEM_CUBE_ONLY = 1;
>>     @Deprecated
>>     public static final int OEM_TESSERACT_CUBE_COMBINED = 2;
>>     public static final int OEM_DEFAULT = 3;
>>
>> If there is no way to set OEM_LSTM_ONLY in tess-two,
>> I can only assume this is a bug in tess-two.
>>
>>
>>
>> Quan Nguyen於 2019年12月9日星期一 UTC+8上午12時38分56秒寫道:
>>>
>>> There are new OcrEngineMode 
>>> <https://github.com/tesseract-ocr/tesseract/blob/master/include/tesseract/publictypes.h>
>>>  
>>> values.
>>>
>>>
>>> On Saturday, December 7, 2019 at 7:37:49 PM UTC-6, NY C wrote:
>>>>
>>>> Hi, I am using tess-two for OCR.
>>>>
>>>>
>>>> (Alex Chon version : https://github.com/alexcohn/tess-two 
>>>> <https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Falexcohn%2Ftess-two&sa=D&sntz=1&usg=AFQjCNEQGm3c_HnjOOVpdOoDYCwnElOb5Q>
>>>> )
>>>>
>>>>
>>>> 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);
>>>>
>>>>
>>>> I also tried to set the OEM like this: 
>>>>
>>>>   baseApi.init(pathfiles, language, TessBaseAPI.OEM_CUBE_ONLY);
>>>>
>>>>
>>>> All the OEM parameters have been tried :
>>>>
>>>> (OEM_TESSERACT_ONLY = 0, OEM_CUBE_ONLY = 1, OEM_TESSERACT_CUBE_COMBINED 
>>>> = 2, OEM_DEFAULT = 3) 
>>>>
>>>> Crashes as well.
>>>>
>>>>
>>>> How could I fix this?
>>>>
>>>>
>>>>
>>>>

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