Node Jimp | Color Lighten
The Color Lighten modifier is an inbuilt color modifier in Nodejs | Jimp that lightens the color of an image to a given amount, ranging between 0 to 100. If 100 is provided, it will result in a transparent white image.
Syntax:
image.color([ { apply: 'lighten', params: [value] } ]);
Parameter:
- value: This parameter stores the amount of lightness to apply. It takes values from 0 – 100.
Input Images:
Setup Environment:
npm init -y
Install Dependencies:
npm install jimp
Example 1: In this example, we will use the color() for lightening 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.w3wiki.net/wp-content/uploads/20190328185307/gfg28.png' ); // color function having lighten modifier image.color([{ apply: 'lighten' , params: [50] }]) .write( 'lighten1.png' ); } main(); console.log( "Image Processing Completed" ); |
Output:
Example 2: 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( 'https://media.w3wiki.net/wp-content/uploads/20190328185333/gfg111.png' ); // color function having lighten modifier image.color([{ apply: 'lighten' , params: [50] }], function (err) { if (err) throw err; }) .write( 'lighten2.png' ); } main(); console.log( "Image Processing Completed" ); |
Output:
Reference: https://www.npmjs.com/package/jimp