Research Article
Novel Meaningful Image Encryption Based on Block Compressive Sensing
Table 4
Comparison of block compression and nonblock compression.
| | | Encryption time (s) | Decryption time (s) | | Block compression | Whole compression | Block compression | Whole compression |
| | Lena | 0.1742 | 0.1236 | 2.0058 | 3.7097 | | Barbara | 0.1773 | 0.1312 | 1.9957 | 3.7758 | | House | 0.1769 | 0.1264 | 1.9983 | 3.7024 | | Peppers | 0.1783 | 0.1315 | 1.9926 | 3.7232 |
|
|
