Node Jimp | Gaussian
Introduction : The Gaussian() function is an inbuilt function in Nodejs | Jimp which applies a true Gaussian blur to the image but its processing is quite slow in comparison to other Jimp functions.
Syntax:
gaussian(r, cb)
Parameter:
- r – This parameter stores the pixel radius of the blur.
- cb – This is an 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 environmentvar Jimp = require('jimp');//User-Defined Function to read the imagesasync function main() { const image = await Jimp.read// invert function image.gaussian(5) .write('gaussian1.png');}main(); console.log("Image Processing Completed"); |
Output:
Example 2: With radius and 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//gaussian function using callback function image.gaussian(10, function(err){ if (err) throw err; }) .write('gaussian2.png');}main(); console.log("Image Processing Completed"); |
Output:
Reference: https://www.npmjs.com/package/jimp
