Research Article
Improved Encrypted-Signals-Based Reversible Data Hiding Using Code Division Multiplexing and Value Expansion
Table 1
The performance of EC, ER, and PSNR for different images.
| | Test image | and | EC (bits) | ER (bpp) | PSNR (dB) |
| | Lena | | 262144 | 1 | | | , | 524288 | 2 | | | , | 786432 | 3 | | | 786432 | 3 | | | , | 1310720 | 4 | 29.52 |
| | Pepper | | 262144 | 1 | | | , | 524288 | 2 | | | , | 786432 | 3 | | | 786432 | 3 | | | , | 1310720 | 4 | 29.53 |
| | Sailboat | | 262144 | 1 | | | , | 524288 | 2 | | | , | 786432 | 3 | | | 786432 | 3 | | | , | 1310720 | 4 | 29.52 |
| | Baboon | | 262144 | 1 | | | , | 524288 | 2 | | | , | 786432 | 3 | | | 786432 | 3 | | | , | 1310720 | 4 | 29.52 |
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