Node Jimp | Color darken
Introduction
The darken modifier is an inbuilt color modifier in Nodejs | Jimp which is used to darken an image up to a given amount, ranging between 0 to 100. At 100, the image will turn into a black image.
Syntax:
image.color([ { apply: 'darken', params: [value] } ]);
Parameter:
- value – This parameter stores the amount of darkness to be applied. It takes values from 0 – 100.
Input Images:
Example 1:
javascript
// npm install --save jimp // import jimp library to the environment var Jimp = require( 'jimp' ); // User-Defined Function to read the images async function main() { const image = await Jimp.read // color function having darken modifier image.color([{apply: 'darken' , params: [50]}]) .write( 'darken1.png' ); } main(); console.log( "Image Processing Completed" ); |
Output:
Example 2: cb (optional parameters)
javascript
// npm install --save jimp // import jimp library to the environment var Jimp = require( 'jimp' ); // User-Defined Function to read the images async function main() { const image = await Jimp.read // color function having darken modifier image.color([{apply: 'darken' , params: [50]}], function (err){ if (err) throw err; }) .write( 'darken2.png' ); } main(); console.log( "Image Processing Completed" ); |
Output:
Reference: https://www.npmjs.com/package/jimp