This tutorial shows you how to process or manipulate images in node.js. For this we will be using 'jimp' module. You can install it by npm.
LINKS :
Blog Post : http://wp.me/p7GEf6-90
Recursive Directory Function : • Node js Recursive Directory Listing
Jimp is a JavaScript Image Manipulation Program which is an image processing library for node.js written entirely in JavaScript with 0 external or native dependencies.
I consider Jimp the best image processing or manipulation program because it efficient and easy to use module, also it provides a lot of features like resizing images(with resizing algorithms), cropping, scaling adding effects etc.