Tesseract.js is a javascript library that gets words in almost any language out of images. (Demo)
Image Recognition
Video Real-time Recognition
Tesseract.js wraps a webassembly port of the Tesseract OCR Engine.
It works in the browser using webpack or plain script tags with a CDN and on the server with Node.js.
After you install it, using it is as simple as:
importTesseractfrom'tesseract.js';
Tesseract.recognize(
'https://tesseract.projectnaptha.com/img/eng_bw.png',
'eng',
{ logger: m =>console.log(m) }
).then(({ data: { text } }) => {
console.log(text);
})
React Native is not supported as it does not support Webassembly.
Disclaimer: These examples are now several years old and use old versions of both Tesseract.js and the relevant frameworks. Users are encouraged to use the latest version of Tesseract.js rather than the versions used in these examples. For users that update these examples (or make new ones), please consider contributing through a PR.
Contributing
Development
To run a development copy of Tesseract.js do the following:
# First we clone the repository
git clone https://github.com/naptha/tesseract.js.git
cd tesseract.js
# Then we install the dependencies
npm install
# And finally we start the development server
npm start
The development server will be available at http://localhost:3000/examples/browser/demo.html in your favorite browser.
It will automatically rebuild tesseract.dev.js and worker.dev.js when you change files in the src folder.
Online Setup with a single Click
You can use Gitpod(A free online VS Code like IDE) for contributing. With a single click it will launch a ready to code workspace with the build & start scripts already in process and within a few seconds it will spin up the dev server so that you can start contributing straight away without wasting any time.
Building Static Files
To build the compiled static files just execute the following:
npm run build
This will output the files into the dist directory.
Contributors
Code Contributors
This project exists thanks to all the people who contribute. [Contribute].
Financial Contributors
Become a financial contributor and help us sustain our community. [Contribute]
Individuals
Organizations
Support this project with your organization. Your logo will show up here with a link to your website. [Contribute]
FAQs
Pure Javascript Multilingual OCR
The npm package tesseract.js receives a total of 76,883 weekly downloads. As such, tesseract.js popularity was classified as popular.
We found that tesseract.js demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago.It has 4 open source maintainers collaborating on the project.
Last updated on 01 May 2023
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