Table 2 Results of evaluation method with one shared image
From: Improved scheme and evaluation method for progressive visual cryptography
| Â | \(C_{S_1}\) | \(C_{S_2}\) | \(C_{S_3}\) | \(C_{S_4}\) | \(C_{S_5}\) | Average | Standard deviation |
|---|---|---|---|---|---|---|---|
Basic scheme | 0.4515 | 0.3258 | 0.4514 | 0.3267 | 0.2249 | 0.3560 | 0.1928 |
Our scheme | 0.1768 | 0.1780 | 0.1772 | 0.1815 | 0.1797 | 0.1786 | 0.0039 |