培训Tesseract OCR以消除歧义

Question

I am pretty new to data scraping and I am facing a minor issue.

I am trying to extract text from a Hindi pdf using textract and Tesseract OCR. Following is the code in Python:

import textract

text = textract.parsers.process("test.pdf", encoding='utf_8', method='tesseract', language = 'hin')

Now, many of the words from the PDF are correctly extracted. However, there are some things that are messed up. I read the documentation and about how ambiguities can be overridden by using a file lang.unicharambigs . However, I need to run combine_tessdata in order to actually bring it into effect and override certain trained data.

However, when I try to run the command I get the following:

 -bash: combine_tessdata: command not found

I have installed tesseract from the source and I can't seem to understand why this is happening. Any ideas on how to troubleshoot this?

Thanks in advance!

Answer 1

Tesseract training executables are built separately.

https://github.com/tesseract-ocr/tesseract/wiki/Compiling