This blog post explains how to keep people privacy in photos by automatically blurring their faces. A pixelization effect is applied on images. Together with a

This blog post explains how to keep people privacy in photos by automatically blurring their faces. A pixelization effect is applied on images. Together with automatic face detection, only faces in a picture are blurred as intensely as you need. Image transformations are transformed on-the-fly in the cloud. Code samples in Ruby on Rails, Django, PHP and Node.js are included.