One 、 summary

Tesseract.js It's a JavaScript library , You can get words in almost any language from the image .

• Offline version ：https://github.com/jeromewu/tesseract.js-offline
• The electronic ：https://github.com/jeromewu/tesseract.js-electron
• Custom training data ：https://github.com/jeromewu/tesseract.js-custom-traineddata
• Chrome Expand #1：https://github.com/jeromewu/tesseract.js-chrome-extension
• Chrome Expand #2：https://github.com/fxnoob/image-to-text
• Firefox Expand ：https://github.com/gnonio/korporize
• Use Vue：https://github.com/jeromewu/tesseract.js-vue-app
• Use Angular：https://github.com/jeromewu/tesseract.js-angular-app
• Use React：https://github.com/jeromewu/tesseract.js-react-app
• Typescript：https://github.com/jeromewu/tesseract.js-typescript
• Real time video recognition ：https://github.com/jeromewu/tesseract.js-video

Two 、 Offline version

• clone

git clone https://github.com/jeromewu/tesseract.js-offline

• Dependent Download

yarn/npm install

• start-up
• visit http://127.0.0.1:3000/browser/index.html
• Or do not start directly to html Document carried out Open with Live Server

npm run start

• Directly use the script to run the English example

const {
     createWorker } = require('tesseract.js');
const path = require('path');
//  Language settings , Single language recognition 
// chi_sim----eng
const language = 'eng'

const worker = createWorker({
    
  langPath: path.join(__dirname, '..', 'lang-data'), 
  logger: m => console.log(m),
});

(async () => {
    
  await worker.load();
  await worker.loadLanguage(language);
  await worker.initialize(language);
  const {
     data: {
     text } } = await worker.recognize(path.join(__dirname, '..', 'images/en', 'demo_eurotext.png'));
  console.log(text);
  await worker.terminate();
})();

node .\node\index.js

• Identify other languages chi_sim It's Chinese

Download other language training data

• Place on lang-data
• It will be decompressed after application