Table 11 NPCR and UACI for various images.

From: A new multiple image encryption algorithm using hyperchaotic systems, SVD, and modified RC5

Metric

Image

Result

NPCR

House

99.6078

Peppers

99.6119

Mandrill

99.5967

Sailboat

99.6201

Satellite Image 4

99.6023

Satellite Image 5

99.6068

Average

99.6076

UACI

House

29.4973

Peppers

32.1632

Mandrill

29.4397

Sailboat

32.145

Satellite Image 4

28.4525

Satellite Image 5

30.6095

Average

30.6095