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Node Jimp | resize

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The resize() function is an inbuilt function in Nodejs | Jimp which resizes the image to a set width and height using a 2-pass bilinear algorithm. 

Syntax: 

resize(w, h, mode, cb)

Parameter: 

  • w: This parameter stores the width of the image.
  • h: This parameter stores the height of the image.
  • mode: This is an optional parameter that stores the scaling method.
  • cb: This is an optional parameter that is invoked when compilation is complete.

Input Images: 


Step 1: Setting up the environment 

npm init -y

Step 2: Install jimp

npm install jimp --save

Example 1:  In this example, we will see the use of jimp in resizing 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(
    // rotate Function having rotation as 55
    image.resize(323, 421)
        .write('resize1.png');
}
 
main();
console.log("Image Processing Completed");

                    

Output: 
 


Example 2: With 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(
    //rotate Function having rotation angle as 99, mode and callback function
    image.resize(1024, 768, Jimp.RESIZE_BEZIER, function (err) {
        if (err) throw err;
    })
        .write('resize2.png');
}
 
main();
console.log("Image Processing Completed");

                    

Output: 

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



Last Updated : 27 Mar, 2023
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