Table 5 SSIM analysis of CFOPS-BSBEA technique with existing models under various secret images.

From: Crayfish optimization based pixel selection using block scrambling based encryption for secure cloud computing environment

SSIM

Secret Images

CFOPS-BSBEA

BESOPSCE

CEGAN

GSOSM

SSOSM

CSOSM

IMG 1

0.9996

0.9992

0.9934

0.9782

0.9684

0.9565

IMG 2

0.9990

0.9983

0.9918

0.9807

0.9678

0.9523

IMG 3

0.9991

0.9984

0.9832

0.9768

0.9684

0.9550

IMG 4

0.9990

0.9984

0.9861

0.9793

0.9725

0.9653

IMG 5

0.9989

0.9982

0.9895

0.9770

0.9643

0.9528

IMG 6

0.9999

0.9998

0.9923

0.9811

0.9707

0.9639

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