Openalpr: training data in /usr/share/openalpr/runtime_data/ocr/ or /usr/share/openalpr/runtime_data/ocr/tessdata

[jayjupdhig]

Message:

alpr -c eu test.jpg
Error opening data file /usr/share/openalpr/runtime_data/ocr/leu.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory.
Failed loading language 'leu'
Tesseract couldn't load any languages!

Then:

TESSDATA_PREFIX=/usr/share/openalpr/runtime_data/ocr/tessdata

After that, same message:

alpr -c eu test.jpg
Error opening data file /usr/share/openalpr/runtime_data/ocr/leu.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory.
Failed loading language 'leu'
Tesseract couldn't load any languages!

Why the files are in /usr/share/openalpr/runtime_data/ocr/tessdata, but the alpr searches for it on /usr/share/openalpr/runtime_data/ocr? And why it does not work to set the TESSDATA_PREFIX variable?

When i set that variable to /usr/share/openalpr/runtime_data/ocr/tessdata, the aplr app still searches in /usr/share/openalpr/runtime_data/ocr for it...

why??

thanks for feedback,.

[jayjupdhig]

May i should soft-link all files from /usr/share/openalpr/runtime_data/ocr/tessdata to /usr/share/openalpr/runtime_data/ocr ???

[jayjupdhig]

Now i suddenly get an memory access error:

alpr n.jpg
Error opening data file /usr/share/openalpr/runtime_data/ocr/lus.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory.
Failed loading language 'lus'
Tesseract couldn't load any languages!
Speicherzugriffsfehler (Speicherabzug geschrieben)

[jayjupdhig]

noibody knows about the directory problem`??

[jayjupdhig]

same problem with that command, WTF?!?!

TESSDATA_PREFIX=/usr/share/openalpr/runtime_data/ocr/tessdata && alpr n.jpg

[jayjupdhig]

Maybe that bug is only on the version i've downloaded from the ubuntu APT repo?!?!

[jayjupdhig]

https://debianforum.de/forum/viewtopic.php?f=27&t=176976&p=1234596#p1234596

[jayjupdhig]

question seems to be too complex or what??

[jayjupdhig]

I think it's a product strategy to make the opensource version completely unusable, so the people buy it because they are resignated.

I think i'm right with that.

So the OS version is just a decoy, nothing else....!!

And i don't like that strategy. Because it's not honest.

Because of that, now i try it with https://platerecognizer.com, hehe!! :-)

[theonlyNischal]

sudo cp -a /usr/share/openalpr/runtime_data/ocr/tessdata/*.traineddata /usr/share/openalpr/runtime_data/ocr/

I had the same issue and copying solved my issue.

[jayjupdhig]

Thank you for your information.

Since we use Debian 9.x, instead of Ubuntu 18.x LTS, the problem does not exist anymore. On Debian 9.x, it's not necessary to solve that issue - works by default without that problems.