Table 2 Normalized Hamming distances for 
images after varying one parameter.
images after varying one parameter.From: Key-Dependent JPEG2000-Based Robust Hashing for Secure Image Authentication
Hamming distance | |||
|---|---|---|---|
Level 1 | Level 2 | Level 3 | Level 4 |
|
|
|
|
0.39 | 0.00 | 0.00 | 0.00 |
0.49 | 0.51 | 0.51 | 0.00 |
0.29 | 0.00 | 0.29 | 0.00 |
0.46 | 0.00 | 0.00 | 0.00 |
0.44 | 0.42 | 0.36 | 0.00 |
0.33 | 0.14 | 0.14 | 0.00 |
0.45 | 0.46 | 0.45 | 0.00 |
0.17 | 0.03 | 0.03 | 0.00 |
0.32 | 0.00 | 0.08 | 0.00 |
0.40 | 0.00 | 0.00 | 0.00 |
