Table 10 Quality of the recovery for methods 1 and 2 (two levels)
From: Progressive sharing of multiple images with sensitivity-controlled decoding
Image quality of secret image ‘Lena’ | Image quality of secret image ‘Pepper’ | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Progressive thresholds ( r j1 & r j2 ) | Recovery on level 1 | Recovery on level 2 | Progressive thresholds ( r j1 & r j2 ) | Recovery on level 1 | Recovery on level 2 | ||||
PSNR | SSIM | MSE | PSNR | SSIM | MSE | ||||
2&3 | 28.53 | 0.843 | 91.12 | Lossless | 2&3 | 28.67 | 0.861 | 88.21 | Lossless |
3&4 | 29.08 | 0.859 | 80.26 | Lossless | 3&4 | 29.32 | 0.877 | 76.00 | Lossless |
4&5 | 29.63 | 0.871 | 70.80 | Lossless | 4&5 | 29.97 | 0.891 | 65.43 | Lossless |
5&6 | 29.85 | 0.874 | 67.30 | Lossless | 5&6 | 30.35 | 0.892 | 59.85 | Lossless |