Fair enough, though I was just using this as an example. In practice, it 
will be a 8 or 9 character alphanumeric string like a code. Would the extra 
6-7 characters be enough context?

On Tuesday, October 22, 2019 at 5:32:37 AM UTC-7, zdenop wrote:
>
> I am afraid that such small faction of text (where are just letter 
> commonly misinterpreted like S or 5 or ? can not recognized with 100% 
> accuracy. Try to use in some context (line).
>
> Zdenko
>
>
> po 21. 10. 2019 o 20:22 Ast <[email protected] <javascript:>> 
> napĂ­sal(a):
>
>> I've spent a good amount of time looking how to resolve this issue. Came 
>> across this unanswered post 
>> <https://groups.google.com/forum/?fromgroups#!searchin/tesseract-ocr/2s%7Csort:date/tesseract-ocr/uDxMr-65_nk/csA6aYaLCwAJ>
>>  
>> from 2017. Tried it and it is still reproducible today. There are 2 images 
>> - one with the letter S, one with 2S. As a single character, the letter S 
>> is detected successfully but 2S is detected as 25
>>
>> From what I've been able to learn, this issue stems from the combination 
>> of alphanumeric characters (common in receipts or codes) and how tessaract 
>> tries to use dictionary words. 
>>
>> *Environment:*
>>
>> tesseract 4.1.0
>>  leptonica-1.76.0
>>   libgif 5.1.4 : libjpeg 6b (libjpeg-turbo 1.5.2) : libpng 1.6.36 : 
>> libtiff 4.0.10 : zlib 1.2.11 : libwebp 0.6.1 : libopenjp2 2.3.0
>>  Found AVX2
>>  Found AVX
>>  Found SSE
>>
>> Debian 10 64bit
>>
>> I've tried changing some configurations such as* load_system_dawg=0* and 
>> *load_freq_dawg=0* but without luck.
>>
>> I am fairly new to OCR so any input and feedback is greatly appreciated. 
>> Thank you. 
>>
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>>
>

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