Node Jimp | Crop

Introduction
The crop() function is an inbuilt function in Nodejs | Jimp which is used to crop the image with in specified co-ordinates and dimensions.
Syntax:

crop( x, y, w, h, cb )

Parameter:

• x – This parameter stores the x co-ordinate of cropping.
• y – This parameter stores the y co-ordinate of cropping.
• w – This parameter stores the width of the cropping image.
• h – This parameter stores the height of the cropping image.
• cb – This is optional parameter which is invoked when compilation is complete.

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('../gfg.png');
// crop function having crop co-ordinates
// along with height and width
  image.crop(10, 10, 150, 120)
  .write('crop1.png');
}

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

Output:

Example 2: With cb (optional parameter)

// 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('../gfg1.png');
// crop function using callback function
  image.crop(20, 20, 100, 100, function(err){
    if (err) throw err;
  })
  .write('crop2.png');
}

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

Output:

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