Please see
https://tesseract-ocr.github.io/tessdoc/Data-Files-in-tessdata_fast

It seems that Ray used a smaller network spec for many languages when
training for tessdata_fast to speed them up. However since their float
versions are not available, training has to be done using tessdata_best
models. That might explain the result you got.

Fine-tuning for impact does not change the model. Plus-minus or replace top
layer may do that.


On Fri, Apr 10, 2020, 19:54 O CR <[email protected]> wrote:

> Thank you for responding.
> I did the finetuning on the best Latin float model. And I converted the
> model to integer. But it's still slower then the fast integer Latin
> model....
> Any other ideas to make it faster?
>
> Op vrijdag 10 april 2020 14:17:55 UTC+2 schreef shree:
>>
>> The file is probably there as script/Latin.traineddata
>> You can copy to wherever you are looking for the best traineddata files.
>>
>> On Fri, Apr 10, 2020, 16:59 O CR <[email protected]> wrote:
>>
>>> Which language do I have to use? Because Latin isn't supported.
>>> ./tesstrain.sh --fonts_dir "/usr/share/fonts" *--lang Latin*
>>> --linedata_only  --noextract_font_properties --langdata_dir ./langdata
>>> --tessdata_dir ./tessdata  --output_dir ./output
>>>
>>> Op woensdag 8 april 2020 18:27:15 UTC+2 schreef shree:
>>>>
>>>> I suggest you fine-tune Latin.traineddata using text of the kind you
>>>> expect. It will have a smaller unicharset and when you convert to fast
>>>> integer model, it should be smaller in size.
>>>>
>>>> On Wed, Apr 8, 2020, 20:39 O CR <[email protected]> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> I try to read names on images with tesseract LSTM. Names like:
>>>>>
>>>>> Śerena Kovitch
>>>>>
>>>>> ŁAGUNA EVREIST
>>>>>
>>>>> Äna Optici
>>>>>
>>>>> Orğu Moninck
>>>>>
>>>>>
>>>>> (I don't have to recognize words)
>>>>>
>>>>>
>>>>> Latin.traineddata (fast integer) is doing well with the diacritics,
>>>>> but there are a lot of characters I don't need like numbers, %, ﹕ ,﹖
>>>>> ,﹗,﹙ ,﹚ ,﹛ ,﹜ ,﹝ ,﹞ ,﹟ ,﹠ ,﹡ ,﹢ ,﹣ ,﹤,﹥,﹦ ,﹨ ,﹩ ﹪ ,﹫,and much more. And so
>>>>> Latin.traineddata is too slow.
>>>>>
>>>>> So I thought I take eng.traineddata (best float for LSTM) and I train
>>>>> it for the diacritics. But there are almost 400 diacritics. So I don't 
>>>>> know
>>>>> if fine-tuning for such amount of characters is a good idea?
>>>>>
>>>>> However I tried it but the quality is very poor.
>>>>>
>>>>> I trained with eng.training_text (a English text of 72 lines) and I
>>>>> added all the diacritics several times. The char error rate during 
>>>>> lstmeval
>>>>> is around 0.1. I did a test with 80 documents, and I read 30 names 
>>>>> correct.
>>>>> (on each document there is one name). (time is similar to 
>>>>> Latin.traineddata)
>>>>>
>>>>>
>>>>> What can I do to get a model that is as good as Latin.traineddata on
>>>>> diacritics but is much faster in ocr reading?
>>>>>
>>>>>
>>>>> Thank you.
>>>>>
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>>>>>
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