nkocr 2.0.0

This is a module to make specifics OCRs at food products and nutricional tables.

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This is a module to make specifics OCRs at food products and nutritional tables.

As a prerequisite of this project, we have the tesseract library which can be found in more detail at

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

Installation of prerequisites

Tesseract OCR

The installation of tesseract on the Linux system can be done in a few commands:

$ sudo apt install tesseract-ocr tesseract-ocr-por libtesseract-dev

And the same goes for macOS. There is a variation between MacPorts and Homebrew, but in this post I will only quote the version of Homebrew:

$ brew install tesseract

After performing the tesseract installation, it is possible to perform OCR in just one command, thus already extracting some words from the image.

The default language is English, depending on the text, it will not be possible to capture the word/phrase. If you want to work with another language, you need to make some additional installations. (https://github.com/tesseract-ocr/tesseract/wiki#other-languages)

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OpenCV

The installation of OpenCV on the Linux system can be done in a command:

$ sudo apt install python3-opencv

To more informations, access: https://docs.opencv.org/master/da/df6/tutorial_py_table_of_contents_setup.html

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Installation

You can install this package with:

$ pip install nkocr --user

Operating Pipeline

How to use

To use this package, after do installation, do:

from nkocr import OcrTable, OcrProduct

Example

from nkocr import OcrTable

text = OcrTable("paste_image_url_here")
print(text) # or print(text.text)