[ANNOUNCEMENT] Test: tesseract-ocr-4.0.0-0.4
Thu Aug 9 09:19:00 GMT 2018
Am 09.08.2018 um 10:19 schrieb Marco Atzeri:
> My understanding is that the trained data "tessdata, tessdata_fast,
> tessdata_best" are coming from the same training data then version 3
> It is not that the languages raw data should be changed.
https://github.com/tesseract-ocr/langdata is valid for Tesseract 3.05.x
and earlier versions.
Tesseract 4.0.0 still supports the old traineddata format, but added new
(and typically better) traineddata based on neural networks. There is
currently no langdata available for those new traineddata.
tessdata_best only contains the new traineddata.
tessdata_fast also contains only new traineddata, but is faster and less
tessdata still contains old traineddata for most languages and
additionally new traineddata made from tessdata_best, but using integer
instead of float models (which makes them faster).
tessdata_best, tessdata_fast and tessdata not only contain traineddata
for many languages, but also for "scripts", for example in
models support all languages using the same script, so
supports all languages which use Latin characters (English, French,
Spanish, Italian, German, Danish, ...). A selection of those script
models would be useful for Cygwin, too.
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