  Iris recognition, a relatively new biometric technology, has great
advantages, such as variability, stability and security, thus is the most
promising for high security environment. Iris recognition is proposed in this
report. We describe some methods, the first one is based on grey level
histogram to extract the pupil, the second is based on elliptic and parabolic
HOUGH transformation to determinate the edge of iris, upper and lower eyelids,
the third we used 2D Gabor Wavelets to encode the iris and finally we used the
Hamming distance for authentication.
