For Latin OCR, I found I got vastly better results using unicharambigs with
mandatory replacements,
e.g.:
https://github.com/ryanfb/latinocr-lattraining/blob/master/ligatures.unicharambigs
-Ryan
On Wednesday, June 10, 2015 at 9:23:12 AM UTC-4, John Slade wrote:
>
> Have a look at the options "tessedit_char_blacklist" and
> "tessedit_char_whitelist". You could blacklist any ligatures you aren't
> interested in.
>
> Or go the other way and just whitelist the things you want - for instance
> you could whitelist to just the printable ascii characters.
>
> John
>
>
>
> On Monday, 8 June 2015 17:22:10 UTC+1, Rick Leir wrote:
>>
>> This problem with ligatures or digraphs is appearing frequently, how can
>> I avoid it? I want simple output text, without ligatures. It is possible
>> that the 'f' and 'i' are touching in the image. Is there a way to pass
>> hints to Tesseract? Version 3.03 on Linux. TIA
>>
>> image text: fish
>> OCR: "\x{fb01}sh";
>> utf8: fish
>>
>> image text: flambeau
>> OCR: "\x{fb02}ambeau,";
>> utf8: flambeau,
>>
>> "\x{fb01}xed";
>> fixed
>>
>> "arti\x{fb01}cial";
>> artificial
>>
>
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