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Node Jimp | Color Lighten
  • Last Updated : 22 Feb, 2021

Introduction : The lighten modifier is an inbuilt color modifier in Nodejs | Jimp which lightens the color of an image to a given amount, ranging between 0 to 100. If 100 is provided, it will result into 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: 
 

javascript




// 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
// 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
var Jimp = require('jimp');
 
// User-Defined Function to read the images
async function main() {
  const image = await Jimp.read
// 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
 




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