Problem using "--oem 0" in Tesseract 5.4.0

[Fred Andrews]

I captured a screenshot of a VirtualBox guest boot crash and Tesseract didn't seem to do very well OCRing that text, so I wanted to try the older engine, which the help says should be possible by using "--oem 0".  However, this doesn't work:

D:\temp\virtualbox-project>"c:\Program Files\Tesseract-OCR\tesseract.exe" vb-crash.png output --oem 0
Error: Tesseract (legacy) engine requested, but components are not present in c:\Program Files\Tesseract-OCR/tessdata/eng.traineddata!!
Failed loading language 'eng'
Tesseract couldn't load any languages!
Could not initialize tesseract.

But, I installed Tesseract 5.4.0 using the prebuilt binary:
https://digi.bib.uni-mannheim.de/tesseract/tesseract-ocr-w64-setup-5.4.0.20240606.exe
and so that file IS present at the location claimed:

c:\Program Files\Tesseract-OCR\tessdata>dir
 Volume in drive C is DESKOS
 Volume Serial Number is EA89-635E

 Directory of c:\Program Files\Tesseract-OCR\tessdata

06/07/2024  10:59 AM    <DIR>          .
06/07/2024  10:59 AM    <DIR>          ..
06/07/2024  04:50 AM    <DIR>          configs
06/06/2024  09:18 AM         4,113,088 eng.traineddata
01/16/2019  03:53 PM                33 eng.user-patterns
01/16/2019  03:53 PM                27 eng.user-words
06/06/2024  09:19 AM           128,076 jaxb-api-2.3.1.jar
06/06/2024  09:18 AM        10,562,727 osd.traineddata
06/06/2024  09:41 AM               572 pdf.ttf
06/06/2024  09:19 AM           125,187 piccolo2d-core-3.0.1.jar
06/06/2024  09:19 AM           149,558 piccolo2d-extras-3.0.1.jar
06/07/2024  04:50 AM    <DIR>          script
06/06/2024  09:19 AM            26,376 ScrollView.jar
06/07/2024  04:50 AM    <DIR>          tessconfigs
               9 File(s)     15,105,644 bytes
               5 Dir(s)  1,600,415,711,232 bytes free

So it looks like either paths aren't being handled properly on Windows (note the use of forward slashes in the output), or somehow the old engine expects a different format than the eng.traineddata installed with 5.4.0

Should I attempt to file an issue on the Mannheim Github site?
https://github.com/UB-Mannheim/tesseract

[Zdenko Podobny]

Please show minimal respect and first google for a solution.

Zdenko

pi 7. 6. 2024 o 18:23 Fred Andrews <fredan...@gmail.com> napísal(a):

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[Fred Andrews]

I already did, and found nothing applicable.  Why make false accusations?