Get the width and height of an image in node.js

Question

Is it possible to get the width and height of an image in node.js (on the server side, not the client side)? I need to find the width and height of an image in a node.js lib

Answer 1

Installing GraphicsMagick or ImageMagick isn't at all needed, determining the dimensions of a image is as easy as looking at the header. image-size is a pure javascript implementation of said feature which is very easy to use.

https://github.com/netroy/image-size

var sizeOf = require('image-size');
sizeOf('images/funny-cats.png', function (err, dimensions) {
  console.log(dimensions.width, dimensions.height);
});