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Node Jimp | rotate

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The rotate() function is an inbuilt function in Nodejs | Jimp that rotates the image clockwise and the dimensions of the image remain the same.

Syntax: 

rotate(r, mode, cb)

Parameter: 

  • r: This parameter stores the rotation angle for 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 how to rotate 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 a rotation as 55
    image.rotate(55)
        .write('rotate1.png');
}
 
main();
console.log("Image Processing Completed");


Output: 


Example 2: With mode and 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.rotate(99, Jimp.RESIZE_BEZIER, function (err) {
        if (err) throw err;
    })
        .write('rotate2.png');
}
 
main();
console.log("Image Processing Completed");


Output:  

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



Last Updated : 27 Mar, 2023
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