How are you creating the box files?

On Wed, Apr 15, 2020, 01:52 Piyush Chandra <[email protected]> wrote:

> For other files, when I try on linux, its coming like this:
>
> unicharset_extractor --norm_mode 2 hin.desk0.box hin.desk1.box
> Extracting unicharset from box file hin.desk0.box
> Invalid start of grapheme sequence:H=0x94d
> Normalization failed for string '्'
> Invalid start of grapheme sequence:M=0x93e
> Normalization failed for string 'ा'
> Invalid start of grapheme sequence:M=0x947
> Normalization failed for string 'े'
> Invalid start of grapheme sequence:M=0x947
> Normalization failed for string 'े'
> Invalid start of grapheme sequence:M=0x93e
> Normalization failed for string 'ा'
> Invalid start of grapheme sequence:M=0x93f
> Normalization failed for string 'ि'
> Invalid start of grapheme sequence:M=0x94b
> Normalization failed for string 'ो'
> Invalid start of grapheme sequence:D=0x902
> Normalization failed for string 'ं'
> Invalid start of grapheme sequence:M=0x940
> Normalization failed for string 'ी'
> Invalid start of grapheme sequence:M=0x93e
> Normalization failed for string 'ा'
> Invalid start of grapheme sequence:M=0x947
> Normalization failed for string 'े'
> Invalid start of grapheme sequence:M=0x948
> Normalization failed for string 'ै'
> Invalid start of grapheme sequence:D=0x902
> Normalization failed for string 'ं'
> Invalid start of grapheme sequence:M=0x93f
> Normalization failed for string 'ि'
>
>
> On Tuesday, 14 April 2020 17:01:20 UTC+5:30, Piyush Chandra wrote:
>>
>> Hi Shree,
>>
>> When I used unicharset extractor command, I get these error:
>>
>> unicharset_extractor --norm_mode 2 --output_unicharset min.unicharset
>> hin.exp1.box
>> Extracting unicharset from box file hin.exp1.box
>> Invalid start of grapheme sequence:M=0x93e
>> Normalization failed for string 'ा'
>> Invalid start of grapheme sequence:D=0x901
>> Normalization failed for string 'αñü'
>> Invalid start of grapheme sequence:M=0x941
>> Normalization failed for string 'ु'
>> Invalid start of grapheme sequence:M=0x947
>> Normalization failed for string 'े'
>> Invalid start of grapheme sequence:M=0x940
>> Normalization failed for string 'ी'
>> Invalid start of grapheme sequence:M=0x948
>> Normalization failed for string 'ै'
>> Mirror ] of [ is not in unicharset
>> Wrote unicharset file min.unicharset
>>
>> The box file used was:
>>
>> ह 28 33 261 74 0
>> ा 28 33 261 74 0
>> ँ 28 33 261 74 0
>> , 28 33 261 74 0
>>   28 33 261 74 0
>> म 28 33 261 74 0
>> ु 28 33 261 74 0
>> झ 28 33 261 74 0
>> े 28 33 261 74 0
>>   28 33 261 74 0
>> [ 28 33 261 74 0
>> ख 28 33 261 74 0
>>   28 33 261 74 0
>> ल 28 33 261 74 0
>> ग 28 33 261 74 0
>> ी 28 33 261 74 0
>>   28 33 261 74 0
>> ह 28 33 261 74 0
>> ै 28 33 261 74 0
>> । 28 33 261 74 0
>> 28 33 261 74 0
>>
>> Do I need to just ignore them or what am I missing here?
>>
>> On Thursday, 9 April 2020 12:34:38 UTC+5:30, shree wrote:
>>>
>>> # Normalization mode - 2, 1 - for unicharset_extractor and Pass through
>>> Recoder for combine_lang_model
>>> ifeq ($(LANG_TYPE),Indic)
>>> NORM_MODE =2
>>> RECODER =--pass_through_recoder
>>>
>>>
>>> On Thu, Apr 9, 2020 at 12:29 PM Shree Devi Kumar <[email protected]>
>>> wrote:
>>>
>>>> Unicharset will look like the following:
>>>>
>>>> द 1 34,72,192,192,100,122,0,0,99,114 Devanagari 11 0 11 द # द [926 ]x
>>>> र 1 58,64,192,192,84,119,0,0,81,110 Devanagari 12 0 12 र # र [930 ]x
>>>> ् 0 3,32,61,197,12,181,0,0,0,1 Devanagari 13 17 13 ् # ् [94d ]
>>>> श 1 61,64,192,195,128,148,0,12,130,147 Devanagari 14 0 14 श # श [936 ]x
>>>> य 1 63,64,192,192,114,142,0,0,111,133 Devanagari 15 0 15 य # य [92f ]x
>>>> त 1 61,64,192,192,112,135,0,0,110,126 Devanagari 16 0 16 त # त [924 ]x
>>>> ि 0 62,65,228,253,132,279,0,0,40,65 Devanagari 17 0 17 ि # ि [93f ]
>>>> प 1 63,64,192,192,98,126,0,0,97,119 Devanagari 18 0 18 प # प [92a ]x
>>>> ू 0 1,35,67,197,33,193,0,0,0,1 Devanagari 19 17 19 ू # ू [942 ]
>>>> ज 1 63,64,192,192,138,165,0,0,128,157 Devanagari 20 0 20 ज # ज [91c ]x
>>>>
>>>> You can unpack any of the existing traineddatas from tessdata_best or
>>>> tessdata_fast and check.
>>>>
>>>> combine_tessdata -u
>>>>
>>>> and looks at the lstm-unicharset in the components
>>>>
>>>> On Thu, Apr 9, 2020 at 12:15 PM Piyush Chandra <[email protected]>
>>>> wrote:
>>>>
>>>>> Thank you Shree for giving the overview.
>>>>>
>>>>> Could you please help me understand your last point? Your unicharset
>>>>> should have Unicode codepoints. what does that mean? any example would be
>>>>> helpful. I was actually using akshara (attached box fiile image) .
>>>>>
>>>>>
>>>>>
>>>>> On Thursday, 9 April 2020 09:02:43 UTC+5:30, shree wrote:
>>>>>>
>>>>>> devenagari.unicharset, Latin.unicharset and radical-stroke.txt
>>>>>>
>>>>>> The script unicharset are useful in setting character properties. For
>>>>>> most scripts they are already available in langadata_lstm. I don't  think
>>>>>> they are mandatory for lstm training but by copying them once you can 
>>>>>> avoid
>>>>>> the warning messages.
>>>>>>
>>>>>> radical-stroke.txt is used only for CJK languages, but tesseract
>>>>>> checks for it during training process, so you need to make it available.
>>>>>>
>>>>>> For chattisgarhi, if training for as written in Devanagari, I will
>>>>>> suggest training from script/Devanagari.traineddata rather than English.
>>>>>>
>>>>>> Please note if you are starting from scratch, then you don't need a
>>>>>> starting traineddata. If you use one, then you are finetuning.
>>>>>>
>>>>>> Finally,  you need to use the correct mode for Indic language with
>>>>>> unicharset_extractor. Your unicharset should have Unicode codepoints, not
>>>>>> akshara (consanant vowel sign combination).
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
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>>>>> <https://groups.google.com/d/msgid/tesseract-ocr/338f0a8e-d998-4411-bcb6-8d49dfbb4ab6%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>>> .
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> ____________________________________________________________
>>>> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>>>>
>>>
>>>
>>> --
>>>
>>> ____________________________________________________________
>>> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>>>
>> --
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