This package a struture for implementing fisheye captcha
A fisheye is ImageCaptcha with the question "Click on the center of the deformation of the image". Gimpy is based on the human ability to analyse distortion of a normal picture, and the inability of current computer programs to do the same.
The FishEye name is a reference to a type of camera objectives with a very wide angle.
This package defines a new CaptchaFactory :