Parents want to avoid their children getting exposed to nude images and to some extent it can be filtered with web proxies. But here is a very good demonstration of nudity detection script which works using javascript and HTML canvas actually scans for nudity in the images and hides it. Thanks to Patrick Wied for making this script. This open source nudity detection technique will help in a greater way to avoid kids getting exposed to explicit thing in the future.
Here is the Demo of that script. If you find this interesting support the developer or spread the word about his work.