python - How do I resolve a TesseractNotFoundError?

Question

I am trying to use pytesseract in Python but I always end up with the following error:

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

However, pytesseract and Tesseract are installed on my system.

Example code that produces this error:

import cv2
import pytesseract

img = cv2.imread('1d.png')
print(pytesseract.image_to_string(img))

How do I resolve this TesseractNotFoundError?

Answer 1

I got this error because I installed pytesseract with pip but forget to install the binary.

On Linux

sudo apt update
sudo apt install tesseract-ocr
sudo apt install libtesseract-dev

On Mac

brew install tesseract

On Windows

download binary from https://github.com/UB-Mannheim/tesseract/wiki. then add pytesseract.pytesseract.tesseract_cmd = 'C:\Program Files (x86)\Tesseract-OCR\tesseract.exe' to your script. (replace path of tesseract binary if necessary)

references: https://pypi.org/project/pytesseract/ (INSTALLATION section) and https://github.com/tesseract-ocr/tesseract/wiki#installation