Table 15 Key sensitivity analysis.

From: Image encryption with 6D hyperchaotic system and vision transformer autoencoder

Image

NPCR

UACI

Barbara

99.6109

33.4514

Boats

99.6162

33.4641

Female

99.6093

33.4608

House

99.6080

33.4661

Jelly beans

99.6071

33.4562

Peppers

99.6109

33.4596

Plane

99.6025

33.4509

Sailboat

99.6086

33.4838

Splash

99.6170

33.4656

Tree

99.6124

33.4671

Average

99.6103

33.4626