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. 2018 Nov 26;13(11):e0208305. doi: 10.1371/journal.pone.0208305

Table 3. Statistical analysis.

Image
Test		 Signature
true		 Signature
encrypted		 DDNT
true		 DDNT
encrypted		 USAF
true		 USAF
encrypted
Entropy 7.4067 7.4037 0.0104 0.01609 0.4190 1.1379
Contrast 0.1455 7.8170 0.03602 0.0046 0.5509 -0.0014
Correlation 0.9848 0.2777 0.5928 0.0380 0.8330 0.8036
Homogeneity 0.9429 0.5412 0.9993 0.9996 0.9993 0.9284