Table 21 PSNR and MSE of different RGB images.

From: A novel color images security-based on SPN over the residue classes of quaternion integers \(\:\varvec{H}{\left(\mathbb{Z}\right)}_{\varvec{\pi\:}}\)

Images

Red

PSNR

Green

Blue

Red

MSE

Green

Blue

Female

44.3950

44.1774

44.3018

2.38

2.50

2.43

Pepper

44.2257

44.2586

44.4295

2.48

2.46

2.36

House

44.1714

44.3376

44.3865

2.51

2.41

2.39

Sailboat on Lake

44.3583

44.0309

44.3953

2.40

2.59

2.38

[25]

44.3020

44.3185

44.4057

2.43

2.42

2.38

[26]

44.1080

44.2180

44.3952

2.54

2.48

2.38

[33]

44.0424

44.3559

44.2269

2.58

2.40

2.48

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