Node Jimp | resize
Introduction
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 optional parameter which stores the scaling method.
- cb – This is optional parameter which is invoked when compilation is complete.
Input Images:
Step 1 : Setting up environment
npm init -y
Step 2 : Install jimp
npm install jimp --save
Example 1:
javascript
// npm install --save jimp// import jimp library to the environmentvar Jimp = require('jimp');// User-Defined Function to read the imagesasync 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 environmentvar Jimp = require('jimp');//User-Defined Function to read the imagesasync 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
