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Solution to extract the text from image and get wordlevel output as dataframe and also to extract text from given boundingBox

Project description

TESSERACT2DICT

This class contains two main funtions:

  1. tess2dict: Input an image and get the extracted text as a dataframe which gives the content, coordinates (x,y,w,h) and confidence of each word. Essentially, it is a wrapper on pytesseract to output a dataframe.
  2. word2text: Once you obtain the dataframe, you can pass it through this function along with a bounding box to get the text inside the given box with proper formatting.

Prerequisites

  • beautifulsoup4
  • MakeTreeDir
  • numpy
  • opencv-python
  • pandas
  • pytesseract

Tesseract Installation

(currently solution works on Tesseract 5.0.0 only)

What is Tesseract?

For Windows

adding path to path variable (for Tesseract)

For Linux

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

Installation

pip install tesseract2dict

Usage

A sample usage of our solution is shown below. Input an image as numpy.ndarray and the extracted dataframe at word level is returned. You can also get the text as plain of a given bounding box with proper formatting using the second function eg:

import cv2
from tesseract2dict import TessToDict
td=TessToDict()
inputImage=cv2.imread('path/to/image.jpg')
### function 1
word_dict=td.tess2dict(inputImage,'out','outfolder')

### function 2
text_plain=td.word2text(word_dict,(0,0,inputImage.shape[1],inputImage.shape[0]))

Authors

  • Sreekiran A R - Analytics Consultant, AI Labs, Bridgei2i Analytics Solutions - Github , Stackoverflow

  • Anil Prasad M N - Project Manager, AI Labs, Bridgei2i Analytics Solutions - Github

License

This project is licensed under the MIT License - see the LICENSE.md file for details

NOTE: This software depends on other packages that may be licensed under different open source licenses.

Useful links

  1. http://gwang-cv.github.io/2017/08/25/ubuntu16.04+Tesseract4.0/

Project details


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