Node Jimp | Blur

The blur() function is an inbuilt function in Nodejs | Jimp which uses a blur algorithm that produces a similar effect to a Gaussian blur. 

Syntax:

blur(r, cb())

Parameter:

• r: This parameter stores the radius of the blur.
• cb: This is an optional parameter that is invoked when compilation is complete.

Input Images:

Setup Environment: 

npm init -y

Install Dependencies :

npm install jimp 

Example 1: In this example, we will see the use of the blur effect in 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');
        image.blur(5)
            .write('blur1.png');
}
main();
console.log('Image Processing Completed');

Output:

Example 2: With cb (optional parameter)

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');
        image.blur(2, function (err) {
            if (err) throw err;
        })
            .write('blur2.png');
}
main();
console.log('Image Processing Completed');

Output:

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