Table 5 Comparative study of the global entropy for encrypted RGB images.

From: FPGA based implementation of a perturbed Chen oscillator for secure embedded cryptosystems

References

Embedded device

Chaotic system

Image size

Average entropy

43

FPGA

Spherical system

320 × 240

7.9936

38

FPGA

Hyperjerk

512 × 512

7.999395

44

Microcontroller

Jerk system

512 × 512

7.9994

45

Microcontroller

MHCM

512 × 512

7.99937

46

Raspberry

Chen

1024 × 1024

7.99936

47

FPGA

Neural network

512 × 512

7.9993

40

FPGA

HNNO

256 × 256

7.9992

This work

FPGA

PCO

512X512

7.99923