Open In App
Related Articles

Node Jimp | fade

Improve
Improve
Improve
Like Article
Like
Save Article
Save
Report issue
Report

The fade() function is an inbuilt function in Nodejs | Jimp that fades each pixel by a factor between 0 and 1. 

Syntax: 

fade(f, cb)

Parameter: 

  • f: This parameter stores the value by which the image is made transparent. It has a range of 0 to 1. 1 will turn the image completely transparent.
  • 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: 

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
    // fade function
    image.fade(.5)
        .write('fade1.png');
}
 
main();
console.log("Image Processing Completed");

                    

Output: 

Example 2: With f 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
    // fade function using callback function
    image.fade(0.8, function (err) {
        if (err) throw err;
    })
        .write('fade2.png');
}
 
main();
console.log("Image Processing Completed");

                    

Output: 


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



Last Updated : 03 Apr, 2023
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads