An Experiment in Map-Based CAPTCHAs
Type in the group of letters where the backgrounds are from a satellite image. Sequences will be between three and ten letters long and are all lowercase. The first example is shown in pink letters. Contact details are below.
Hey, this is pretty interesting! I might want to use it on my blog/website/forum/other. Please let me know when you've got all the kinks worked out and there's a production version available. Here's my email address; I trust that someone who is developing an anti-spam tool won't be sending out spam:
This is dumb! I already figured out how to crack it, and yes, of course I realize that the production version will render the MAPTCHA as a single image, not as separate elements, and it will draw from a practically limitless database of color-matched images. Here's how I would program a bot to defeat it.