Research Article
Image Encryption Algorithm Based on Adaptive Wavelet Chaos
Table 3
Statistical tests result.
| Test class | Proportion | value |
| Frequency | 0.9850 | 0.84672 | Block frequency | 0.9980 | 0.57986 | Cumulative sums (forward) | 0.9850 | 0.49073 | Cumulative sums (reverse) | 0.9880 | 0.46982 | Runs | 0.9920 | 0.31092 | Rank | 0.9930 | 0.12098 | Fft | 0.9850 | 0.95823 | Nonperiodic templatesΔ | 0.9870 | 0.95621 | Overlapping templates | 0.9900 | 0.60925 | Universal | 0.9780 | 0.18251 | Approximate entropy | 0.9800 | 0.66823 | Random excursionsΔ | 0.9860 | 037874 | Random excursion variantΔ | 0.9860 | 0.26987 | Serial I | 0.9960 | 0.39023 | Serial II | 0.9910 | 0.16934 | Linear complexity | 0.9940 | 0.24549 |
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ΔTest contains multiple subtests, listed as worst case.
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