Table 22 PSNR and MSE results of multiple RGB Original & encrypted images.

From: Multiple color images security by SPN over the residue classes of Gaussian integer \(\:Z{\left[i\right]}_{h}\)

Schemes

PSNR

MSE

Red

Green

Blue

Red

Green

Blue

Image 1 original

44.67460

44.23125

44.95053

2.23

2.47

2.10

Image 1 encrypted

44.30200

44.31854

44.40567

2.43

2.42

2.38

Image 2 original

44.38027

44.23182

44.39681

2.39

2.47

2.38

Image 2 encrypted

44.51811

44.29740

44.81275

2.31

2.44

2.16

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