Does not get text from image if image contains some background objects about tesseract.js HOT 11 CLOSED

I have not tried it myself, but https://github.com/oliver-moran/jimp seems to provide what you need.

According to the examples:

image
  .greyscale()
  .contrast(+1)

Although you may also try to detect whether the image is rather dark or rather bright, and invert its colors accordingly.

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@NikithShetty you can use the following code. It's just POC to understand how JIMP and tesseract works together.

var Tesseract = require('tesseract.js');
var Jimp = require("jimp");


Jimp.read("img.jpg").then(function (image) {
    image.greyscale()
        .contrast(+1)    
        .normalize()
        .write("img-opt.jpg");
})
.then(function() {
  Tesseract.recognize('img-opt.jpg')
    .progress(function(message){console.log(message)})
    .catch(function(err){console.error(err)})
    .then(function(result){console.log(result.text)})
})
.catch(function (err) {
    console.error(err);
});

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Why am I still getting notifications for this :')

@monikacapternal @aditya0salaria - you probably have to desaturate the image and increase the contrast for readability.

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Have you tried to detect the text after desaturation, adjustment of contrast plus, optional, inversion of colors?

It should work just fine with just these small changes.

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Im writing service in nodejs which will take image as a input and will use tesseract.js to process it and get the text out of it. There will not be any interaction in between. I will appreciate if you point me to some libs that will help me to do what you mentioned.

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Thanks @mjurczyk that worked for me.

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@shamsher31 can u share how you implemented color inversion using jimp?

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Thanks @shamsher-synerzip31

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Hi Guys,

I need help regarding tesseract functionality. I am using below code, Output is coming but not getting clear output. Is there any way, we can get clear output. Below is the code:

Library used below:

function used below:
setTimeout(function(){
var myImage= document.getElementById('ImageId');
Tesseract.recognize(myImage).then(function(result){
$('#Output').val(result.text);
});
},1000);

I have attached few images as an example which i need to convert to text

.

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not getting text

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