Node Jimp | Color saturate

Last Updated : 27 Mar, 2023

The saturate modifier is an inbuilt color modifier in Nodejs | Jimp that saturates an image to a given amount, from 0 to 100. 

Syntax: 

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

Parameter: 

  • value - This parameter stores the amount of saturation 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 see the image saturation.

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 saturate modifier
    image.color([{ apply: 'saturate', params: [50] }])
        .write('saturate1.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 saturate modifier
    image.color([{ apply: 'saturate', params: [50] }], function (err) {
        if (err) throw err;
    })
        .write('saturate2.png');
}

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

Output: 


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

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