Node Jimp | invert
Introduction : The invert() function is an inbuilt function in Nodejs | Jimp which inverts an image’s colors.
Syntax:
invert(cb)
Parameter:
- cb – This is optional parameter which is invoked when compilation is complete.
Input Images:
Setup Environment :
npm init -y
Install Dependencies :
npm install jimp
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 // invert function image.invert() .write( 'invert1.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 var Jimp = require( 'jimp' ); // User-Defined Function to read the images async function main() { const image = await Jimp.read // invert function using callback function image.invert( function (err){ if (err) throw err; }) .write( 'invert2.png' ); } main(); console.log( "Image Processing Completed" ); |
Output:
Reference: https://www.npmjs.com/package/jimp