Node Jimp | Color red

Introduction
The red modifier is an inbuilt color modifier in Nodejs | Jimp which modifies the red components of the given image by a given amount.

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

Parameter:

• value – This parameter stores the amount by which red color of the image is to be modified.

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 red modifier
  image.color([{apply:'red', params: [73]}])
  .write('red1.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 red modifier
  image.color([{apply:'red', params: ['50']}], function(err){
    if (err) throw err;
  })
  .write('xor2.png');
}

main();
  console.log("Image Processing Completed");

Output:

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