Node Jimp | Color blue

Last Updated : 01 Nov, 2019

Introduction: The xor modifier is an inbuilt color modifier in Nodejs Jimp which modifies blue components of the given image by given amount.

Syntax:

image.color([
  { apply: 'green', params: value }
]);

Parameter:

value: This parameter stores the amount by which blue color of the image is to be modify.

Input Images:

Example 1:

// npm install --save jimp
// import jimp library to the environment
var Jimp = require('jimp');
  
// User-Defined Function to read the images
async function main() {
    const image = await Jimp.read(
'https://media.geeksforgeeks.org/wp-content/uploads/20190328185307/gfg28.png');
    // color function having blue modifier
    image.color([{apply:'blue', params: [73]}])
    .write('blue1.png');
} 
  
main();
    console.log("Image Processing Completed");

Output:

Example 2: cb (optional parameters)

// npm install --save jimp
// import jimp library to the environment
var Jimp = require('jimp');
  
// User-Defined Function to read the images
async function main() {
    const image = await Jimp.read(
'https://media.geeksforgeeks.org/wp-content/uploads/20190328185333/gfg111.png');
      
// color function having blue modifier
    image.color([{apply:'blue', params: ['50']}], function(err){
        if (err) throw err;
    })
    .write('blue2.png');
}
  
main();
    console.log("Image Processing Completed");

Output:

Reference: https://www.npmjs.com/package/jimp

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