Tesseract 4 can not load new osd.traineddata

[enkhbaata...@unimedia.co.jp]

I've downloaded and compiled latest tesseract source file from git repository but when i run tesseract engine with mode psm 0 or 1 it can't load osd.traineddata. My osd.traineddata file is from best directory. I tried with older osd.traineddata file from tessdata directory it works fine. Does anyone experience with this error and know fix for this problem? OS: Ubuntu 16.04.02 LTS 

[ShreeDevi Kumar]

There have been updates to the tessdata files. Please see https://github.com/tesseract-ocr/tesseract/issues/995#issuecomment-329667239

ShreeDevi
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भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

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[enkhbaata...@unimedia.co.jp]

Yeah i've checked this update, but the problem is engine fails loading LSTM osd.traineddata.   

On Friday, September 15, 2017 at 2:13:30 PM UTC+8, shree wrote:

There have been updates to the tessdata files. Please see https://github.com/tesseract-ocr/tesseract/issues/995#issuecomment-329667239

ShreeDevi
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भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

On Fri, Sep 15, 2017 at 11:10 AM, <enkhbaata...@unimedia.co.jp> wrote:

I've downloaded and compiled latest tesseract source file from git repository but when i run tesseract engine with mode psm 0 or 1 it can't load osd.traineddata. My osd.traineddata file is from best directory. I tried with older osd.traineddata file from tessdata directory it works fine. Does anyone experience with this error and know fix for this problem? OS: Ubuntu 16.04.02 LTS 

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[enkhbaata...@unimedia.co.jp]

traineddata that i can load with tesseract include files shown above image, second image shows extracted files from osd.traineddata which fails at tesseract load. 

 

On Friday, September 15, 2017 at 2:13:30 PM UTC+8, shree wrote:

There have been updates to the tessdata files. Please see https://github.com/tesseract-ocr/tesseract/issues/995#issuecomment-329667239

ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

On Fri, Sep 15, 2017 at 11:10 AM, <enkhbaata...@unimedia.co.jp> wrote:

I've downloaded and compiled latest tesseract source file from git repository but when i run tesseract engine with mode psm 0 or 1 it can't load osd.traineddata. My osd.traineddata file is from best directory. I tried with older osd.traineddata file from tessdata directory it works fine. Does anyone experience with this error and know fix for this problem? OS: Ubuntu 16.04.02 LTS 

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[ShreeDevi Kumar]

The best traineddata, as you can see, does not have files supporting the legacy engine. It will not work with --oem 0.

ShreeDevi
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[enkhbaata...@unimedia.co.jp]

i've tried running it with --oem 3 ( default is LSTM mode ) and --oem 1 too, both gives loading failure of osd.traineddata. Other lstm language traineddata files are working fine so i guess problem is loading only osd traineddata

[ShreeDevi Kumar]

Please open an issue and provide all relevant information there. Thanks!

ShreeDevi
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भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

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[Zdenko Podobný]

First I would double check if OSD/landuage files was correctly downloaded (e.g. if they can be uncompress etc.)

Zdenko

On Fri, Sep 15, 2017 at 9:14 AM, ShreeDevi Kumar <shree...@gmail.com> wrote:

Please open an issue and provide all relevant information there. Thanks!

ShreeDevi
____________________________________________________________
भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

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[ShreeDevi Kumar]

The attached screenshots show that osd.traineddata has lstm related files in one version and legacy engine related files in the other one.  Please check the attachments in earlier messages.

ShreeDevi
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भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

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[Quan Nguyen]

I've experienced the same issue with best osd.traineddata ever since it was published when testing Tess4J for Tesseract 4.0.0alpha.

[ShreeDevi Kumar]

please see https://github.com/tesseract-ocr/tesseract/issues/1133#issuecomment-329869988

>jbreiden commented 7 hours ago

As per discussion with Ray, I have taken osd.traineddata from tessdata and copied it to both tessdata_fast and tessdata_best. This should resolve the problem and is the best we can do today. Some day in the future, hopefully, there will be an Orientation Script Dectector (OSD) that works with the LSTM recognizer.

ShreeDevi
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भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com

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