Table 11 A comparative analysis of security metrics NPCR and UACI by various studies.

From: A novel pythonic paradigm for image encryption using axis-aligned bounding boxes

Algorithm

Clock

NPCR (%)

UACI (%)

Suggested

Clock

99.6287

33.4876

Ref.49

Lena

99.60

36.11

Ref.14

–

99.62

33.46

Ref.50

Lena

99.61937

33.44153

Ref.51

Lena

99.6040

33.4736

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