Table 7 Correlation coefficients of original, encrypted, and decrypted images.
Channel | Red | Green | Blue | ||||||
|---|---|---|---|---|---|---|---|---|---|
Original | Encrypted | Decrypted | Original | Encrypted | Decrypted | Original | Encrypted | Decrypted | |
Experimental image 1 | |||||||||
 RFF Mean | 117.43 | 161.95 | 117.43 | 108.57 | 162.0 | 108.57 | 86.46 | 162.05 | 86.46 |
 CFF Mean | 115.39 | 162.12 | 115.39 | 108.05 | 161.98 | 108.05 | 84.85 | 162.01 | 84.85 |
 RFF Different Pixels % | 45.87% | 63.26% | 45.87% | 42.41% | 63.28% | 42.41% | 33.77% | 63.30% | 33.77% |
 CFF Different Pixels % | 45.08% | 63.33% | 45.08% | 42.21% | 63.28% | 42.21% | 33.15% | 63.28% | 33.15% |
