minteye is a captcha system where you try to find the original image out of distorted ones. They also have a feature list on their website but they forgot the view from a computer. I fixed it:
There are two ways to crack this captcha easily. I've used the audio challange. There are three different kind of audio messages.
- move the slider to the right
- move the slider to the left
- slider is in the correct position
1 and 2 are very long sentences and 3 is a very short sentence. I've used Google Chromes text2speech API to convert the audio into text. The text I get pack is totally stupid, but it recognizes "left" and "right" which is sufficient to determine the next move of the slider. Here is a small video which shows the code in action:
minteye should have a look at how reCaptcha obscures the audio. But the problem will always be the small amount of different messages.
edit: to see really cool stuff with reCaptcha, check out what they did: http://www.dc949.org/projects/stiltwalker/