Table 4 Our performances under different block sizes
From: Robust image hashing with compressed sensing and ordinal measures
Block size | AUC | Hash length (integer) | Total run time (s) |
|---|---|---|---|
16 × 16 | 0.99978 | 1024 | 1397.586 |
32 × 32 | 0.99991 | 256 | 659.103 |
64 × 64 | 0.99993 | 64 | 389.702 |
128 × 128 | 0.99918 | 16 | 303.891 |
256 × 256 | 0.89944 | 4 | 277.832 |