Node Jimp | Color darken

Introduction
The darken modifier is an inbuilt color modifier in Nodejs | Jimp which is used to darken an image up to a given amount, ranging bwteen 0 to 100. At 100, the image will turn into a black image.
Syntax:

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

Parameter:

  • value – This parameter stores the amount of darkness to be applied. It takes values from 0 – 100.

Input Images:



Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// 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 darken modifier
  image.color([{apply:'darken', params: [50]}])
  .write('darken1.png');
  
main();
  console.log("Image Processing Completed");

chevron_right


Output:

Example 2: cb (optional parameters)

filter_none

edit
close

play_arrow

link
brightness_4
code

// 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 darken modifier
  image.color([{apply:'darken', params: [50]}], function(err){
    if (err) throw err;
  })
  .write('darken2.png');
}
  
main();
  console.log("Image Processing Completed");

chevron_right


Output:

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



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.