使用tesseract和pytesseract的图像到文本Python 3.6错误

Question

I'm trying to use the image_to_string function from pytesseract but can't get to do that. I've already installed the pytesseract module and the tesseract module but this last one won't seem to work, I have the following code

import argparse
import cv2
import os
import time
import sys
from PIL import Image
import pytesseract
A=Image.open("C:/Users/Martin/Python/Python36/Tickets/2.jpg")
pytesseract.image_to_string(A)

When I run this I get thefollowing error message

Traceback (most recent call last):
  File "C:/Users/Martin/Python/Python36/cosa.py", line 9, in <module>
    pytesseract.image_to_string(A)
  File "C:\Users\Martin\Python\Python36\lib\site-packages\pytesseract\pytesseract.py", line 193, in image_to_string
    return run_and_get_output(image, 'txt', lang, config, nice)
  File "C:\Users\Martin\Python\Python36\lib\site-packages\pytesseract\pytesseract.py", line 140, in run_and_get_output
    run_tesseract(**kwargs)
  File "C:\Users\Martin\Python\Python36\lib\site-packages\pytesseract\pytesseract.py", line 111, in run_tesseract
    proc = subprocess.Popen(command, stderr=subprocess.PIPE)
  File "C:\Users\Martin\Python\Python36\lib\subprocess.py", line 709, in __init__
    restore_signals, start_new_session)
  File "C:\Users\Martin\Python\Python36\lib\subprocess.py", line 997, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] El sistema no puede encontrar el archivo especificado

So I tried to run import tesseract and this shows up

Traceback (most recent call last):
  File "<pyshell#53>", line 1, in <module>
    import tesseract
  File "C:\Users\Martin\Python\Python36\lib\site-packages\tesseract\__init__.py", line 34
    print 'Creating user config file: {}'.format(_config_file_usr)
                                    ^
SyntaxError: invalid syntax

I guess it's a compatibility problem (I'm using Python 3.6.5 and print is now a function so () is expected) but when i run pip install --upgrade tesseract I get that it's already up to date so I don't know how to make this work. I'm working with Windows 7 64bits. Any help greatly appreciated.

Answer 1

In your system there's no Tesseract installed.

The package tesseract that you have installed with pip is another Python package which is not correlated to the Tesseract OCR engine.

You have to install Tesseract following this instructions. Then you can use pytesseract

Answer 2

Not entirely sure if this solves your problem because it's windows and error is not English, but for other googlers, if you encounter

pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your path

The ocr needs to be installed separately from the python package from pip:

sudo apt install tesseract-ocr

Will install it into your path.

Answer 3

ocr需要与pip的python软件包分开安装：

sudo apt install tesseract-ocr