Node Jimp | Color Lighten

The Color Lighten modifier is an inbuilt color modifier in Nodejs | Jimp that lightens the color of an image to a given amount, ranging between 0 to 100. If 100 is provided, it will result in a transparent white image. 

Syntax:

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

Parameter:

• value: This parameter stores the amount of lightness to apply. It takes values from 0 – 100.

Input Images:

Setup Environment: 

npm init -y

Install Dependencies:

npm install jimp 

Example 1: In this example, we will use the color() for lightening the image.

javascript

// npm install --save jimp
// import jimp library to the environment
const 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 lighten modifier
    image.color([{ apply: 'lighten', params: [50] }])
        .write('lighten1.png');
}

main();
console.log("Image Processing Completed");

Output:

Example 2: cb (optional parameters) 

javascript

// npm install --save jimp
// import jimp library to the environment
const 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 lighten modifier
    image.color([{ apply: 'lighten', params: [50] }], function (err) {
        if (err) throw err;
    })
        .write('lighten2.png');
}

main();
console.log("Image Processing Completed");

Output:

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