Node Jimp | Crop

The crop() function is an inbuilt function in Nodejs | Jimp which is used to crop the image within 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 an optional parameter that is invoked when compilation is complete.

Input Images:

Example 1:

javascript

// npm install --save jimp
// import jimp library to the environment
const 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)

javascript

// npm install --save jimp
// import jimp library to the environment
const 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