Using libtesseract on Windows #90

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1. jflesch commented on Jan 11, 2018

   

   jflesch

   on Jan 11, 2018

   Last edited by jflesch

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   I tried to use libtesseract302.dll (from https://github.com/mnadeem/ocr-tess4j-example)

   1. Windows support for libtesseract is based on contributions. I personally don't use it (I use pyocr.tesseract for my project on Windows). So the list of .dll to try to load is probably not up-to-date at all. Please don't hesitate to tell me if you need some new ones to be added.

   2. Tesseract 3.02 is known for not working well with Pyocr (on GNU/Linux anyway). Even if the binding did work, is_available() would have return false. You should try with Tesseract >= 3.0.4.

   3. I don't know where those repositories come from, but they seem intended to be use with tess4j (Java) (are they patched specifically for tess4j ?). Anyway, I think you should use some more official/direct sources for your Tesseract installation: https://github.com/tesseract-ocr/tesseract/wiki/Downloads ; https://github.com/tesseract-ocr/tesseract/wiki/Data-Files

   4. AFAIK, Tesseract 4 is still in alpha. Pyocr supports it on Linux, but I cannot guarantee yet a good support on Windows at all.

   I think it's easy to fix, but why not pack with libtesseract, maybe this will make it easier to use

   Because if we go this way, for consistency, I would have to package also Tesseract.exe, Cuneiform, and data language files of both Tesseract and Cuneiform.
2. jflesch

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   on Jan 11, 2018
4. jflesch commented on Jan 12, 2018

   

   jflesch

   on Jan 12, 2018

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   these names maybe can be added:

   Done: 2d6ead7