Table 5 Image quality and Hamming distances.
From: Iris Recognition: The Consequences of Image Compression
Image | Q uality | HD (versus Original) | Bits compared | Decidability, ( |
|---|---|---|---|---|
Original | 0.9395 | 0.0 | All unoccluded bits | 5.06 |
25 : 1 | 0.8743 | 0.023354 | 728 | 4.65 |
50 : 1 | 0.6713 | 0.025097 | 1036 | 4.47 |
75 : 1 | 0.6220 | 0.044146 | 1042 | 4.13 |
100 : 1 | 0.5687 | 0.092567 | 713 | 3.83 |
)