Node Jimp | Color blue

Last Updated : 01 Nov, 2019

Introduction: The xor modifier is an inbuilt color modifier in Nodejs Jimp which modifies blue components of the given image by given amount.

Syntax:

image.color([
  { apply: 'green', params: value }
]);

Parameter:

value: This parameter stores the amount by which blue color of the image is to be modify.

Input Images:

Example 1:

// 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( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190328185307/gfg28.png'); 
    // color function having blue modifier 
    image.color([{apply:'blue', params: [73]}]) 
    .write('blue1.png'); 
}  
  
main(); 
    console.log("Image Processing Completed"); 

Output:

Example 2: cb (optional parameters)

// 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( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190328185333/gfg111.png'); 
      
// color function having blue modifier 
    image.color([{apply:'blue', params: ['50']}], function(err){ 
        if (err) throw err; 
    }) 
    .write('blue2.png'); 
} 
  
main(); 
    console.log("Image Processing Completed"); 

Output:

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

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