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Loading images from the iOS Photo Library
Using the UIImagePickerController to load and display images from the photo gallery.
File upload with Sinatra
How to write a simple file uploader with sinatra.
Image Manipulation With CImg
Learn how to load and manipulate images in c++ using CImage
Generating animated clouds using Perlin noise.
Learn how to generate cloud-like animated textures by manipulating bitmap data.
Create your own IM bot
How to create an IM bot using the Ruby language and XMPP.