This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Does anybody know an open source Java implementation of an image verification form? I'm not really sure how this feature is officially called, but I am talking about those automatically generated images that contain scrambled text which users need to enter on various websites these days in order to verify that they are indeed human and not a spam bot.
It's not too difficult to create a dynamic image for the browser based on an Image created on the server side, all you need is something to encode an Image into a JPG, GIF, PNG etc, and then make sure you add some elements to fool text recognition like lines and rotation.
I believe there should be sample code on creating dynamic images if you search the forum.