getImageText.js

const Promise = require('bluebird')
const Tesseract = require('tesseract.js')
const Jimp = require('jimp')
const { promisify } = require('util')

const url = 'https://i.imgur.com/dPJ8py9.png'


const getImage = async (url, scale = 1) => {
  return await Jimp.read(url)
    .then( async image => {
      let resizedImage = await image.scale(scale);
      return await new Promise((resolve, reject) => {
        resizedImage.getBuffer(Jimp.MIME_PNG, (err, data) => {
          resolve(getImageText(data))
        }) 
      })
    })
}

const getImageText = async (image) => {
  const imageText = await Tesseract.recognize(image, { 
    lang: 'por',
    //textord_restore_underlines: 5,
    //tessedit_char_whitelist: ['_']
  })
  return imageText.text
  //console.log(imageText.text);
}

Promise.all([getImage(url), getImage(url, 2.5)])
  .then((imagesText) => {
    imagesText.map(text => {
      console.log(text)
    })
  })

const Promise = require('bluebird')
const Tesseract = require('tesseract.js')
const Jimp = require('jimp')

const url = 'https://i.imgur.com/dPJ8py9.png'

const getImage = (url, scale = 1) =>
  Jimp.read(url)
    .then( image => image.scale(scale) )
    .then( resultantImage => new Promise(resolve =>
      resultantImage.getBuffer(
        Jimp.MIME_PNG, (err, data) => resolve(getImageText(data))
      )
    ))

const getImageText = async (image) => {
  const imageText = await Tesseract.recognize(image, {
    lang: 'por',
    //textord_restore_underlines: 5,
    //tessedit_char_whitelist: ['_']
  })
  return imageText.text
  //console.log(imageText.text);
}

Promise.all([getImage(url), getImage(url, 2.5)])
  .then((imagesText) => {
    imagesText.map(text => {
      console.log(text)
    })
  })