Resize an image in Node.js using jimp and get the path the new image

Question

I'm using jimp to resize an image in node.js, I'm successfully able to degrade the image quality, but a bit confused how to get the path of new image

Jimp.read("test.jpg", function (err, test) {
        if (err) throw err;
        test.resize(256, 256)
             .quality(50)                 
             .write("new.jpg"); 
    });

Reading the doc (https://github.com/oliver-moran/jimp#writing-to-files-and-buffers) tells me you can specify the absolute path in `write` function — 0aslam0, Aug 01 '16 at 05:05

score 9 · Answer 1 · answered Aug 01 '16 at 05:19

try something like:

Jimp.read("test.jpg", function (err, test) {
        if (err) throw err;
        test.resize(256, 256)
             .quality(50)                 
             .write(__dirname + "./new.jpg"); 
    });

This should save the file to your project root.

More info on __dirname

score 0 · Answer 2 · answered Aug 11 '16 at 06:40

0

You can increase your image resizing performance by 20 times. Just use another module for image processing. Check this out:

https://github.com/ivanoff/images-manipulation-performance

As you can see there, jimp module is the slowest module.

Try sharp or canvas.

answered Aug 11 '16 at 06:40

Dimitry Ivanov

213
2
4

Thank you, Jimp is slowest, ram consumer and looks like out of the game. Add a line of pixel on a simple rotate, I needed to patch the rotate version. Avoid it – Mathias Osterhagen Nov 27 '20 at 10:31

score 0 · Answer 3 · answered Dec 17 '17 at 00:46

I am using app-root-path npm to get rootPath:

var appRoot = require('app-root-path');
var imgName = new Date().getTime().toString();
var savePath = appRoot + '/uploads/' + imgName;

Jimp.read("test.jpg", function (err, image) {
    if (err) throw err;
    image.resize(256, 256)
         .quality(50)                 
         .write(savePath);

    // save savePath to database

});

Resize an image in Node.js using jimp and get the path the new image

3 Answers3

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