Table 7 Data entropy values comparison.

From: Blockchain driven medical image encryption employing chaotic tent map in cloud computing

Image enciphering schemes

Blood

Brain

Chest x-ray

Ref. 55

7.99820

7.96920

7.96250

Ref. 56

7.996700

7.97670

7.96670

Ref. 57

7.99930

7.92630

7.92430

Ref. 58

7.99700

7.97000.0

7.96000.0

Ref. 59

7.99700

7.94540

7.96450

Ref. 60

7.99740

7.95650

7.94550

Ref. 37

7.99010

7.97020

7.97000

Algorithm proposed

7.99900…

7.98000…

7.97200…

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