Research Article
A Novel Compressive Image Encryption with an Improved 2D Coupled Map Lattice Model
Table 1
The correlation coefficient results of the plain image and encrypted image.
| Image | Plain image | Encrypted image | H | V | D | H | V | D |
| Lena | R | 0.8871 | 0.9316 | 0.8567 | 0.0016 | 0.0002 | 0.0038 | G | 0.9420 | 0.9724 | 0.9317 | 0.0011 | 0.0008 | 0.0038 | B | 0.9728 | 0.9864 | 0.9608 | 0.0025 | 0.0005 | 0.0004 |
| Pepper | R | 0.9629 | 0.9527 | 0.9288 | −0.0027 | −0.0007 | 0.0043 | G | 0.9772 | 0.9840 | 0.9634 | 0.0005 | −0.0025 | −0.0018 | B | 0.9557 | 0.9713 | 0.9521 | −0.0015 | 0.0024 | 0.0065 |
| Women | R | 0.9577 | 0.9740 | 0.9358 | −0.0086 | 0.0025 | 0.0011 | G | 0.9645 | 0.9849 | 0.9534 | −0.0020 | 0.0087 | −0.0035 | B | 0.9807 | 0.9910 | 0.9738 | −0.0066 | −0.0021 | 0.0020 |
| Tree | R | 0.9560 | 0.9422 | 0.9304 | 0.0019 | 0.0096 | 0.0064 | G | 0.9673 | 0.9400 | 0.9240 | 0.0025 | 0.0035 | −0.0018 | B | 0.9619 | 0.9358 | 0.9193 | −0.0004 | 0.0018 | −0.0025 |
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