Table 8 Comparison of PSNRs and MSEs among various progressive sharing schemes (three levels)
From: Progressive sharing of multiple images with sensitivity-controlled decoding
Scheme | PSNR (MSE) of recovery on level 1 | PSNR (MSE) of recovery on level 2 | PSNR (MSE) of recovery on level 3 | PSNR (MSE) of stego |
|---|---|---|---|---|
Chen and Lin [3] (three experiments for ‘Lena’, with various parameter settings) | 13.15 to 31.11 | 20.00 to 46.38 | Lossless | 34.62 to 36.43 |
(MSE = 50.4 to 3148.3) | (MSE = 1.50 to 650.2) | (MSE = 14.8 to 22.4) | ||
Wang and Shyu [4] | *N/A | *N/A | Lossless | *N/A |
Hung et al. [5] (Lena) | 28.00 | 32.67 | 37.04 | 35.68 to 35.86 |
(MSE = 103.1) | (MSE = 35.1) | (MSE = 12.9) | (MSE = 16.9 to 17.6) | |
Chen and Lin [6] (lossy version) | 28.37 | 34.12 | 39.79 | 32.97 to 38.96 |
(MSE = 94.7) | (MSE = 25.18) | (MSE = 6.8) | (MSE = 8.3 to 32.8) | |
Our method 1 | 24.50 to 28.23 | 30.26 to 34.85 | Lossless | 39.60 to 42.00 |
(MSE = 97.7 to 230.7) | (MSE = 21.3 to 61.2) | (MSE = 4.1 to 7.2) | ||
Our method 2 | 24.50 to 28.23 | 30.26 to 34.85 | Lossless | 37.21 to 43.23 |
(MSE = 97.7 to 230.7) | (MSE = 21.3 to 61.2) | (MSE = 3.1 to 12.4) | ||
Our method 3 | 26.92 to 30.53 | 29.19 to 35.72 | Lossless | 40.74 to 42.35 |
(MSE = 57.6 to 132.2) | (MSE = 17.4 to 78.4) | (MSE = 3.8 to 5.5) |