Chaos-Based Application of a Novel Multistable 5D Memristive Hyperchaotic System with Coexisting Multiple Attractors

Table 6

Correlation coefficients of the plain and cipher images.

Image	Plain image			Cipher image
	Horizontal	Vertical	Diagonal	Horizontal	Vertical	Diagonal
Ours	0.94505	0.96653	0.91917	0.00068299	−0.0007768	−0.0036362
Reference [111]	0.964227	0.982430	0.965609	−0.038118	−0.029142	0.002736
Reference [112]	0.812688	0.837959	0.782053	0.001251	−0.003543	0.001449
Reference [113]	0.91848	0.82921	0.80731	0.011899	0.018062	0.036784
Reference [114]	0.97165	0.98730	0.95440	0.00312	−0.00317	−0.00310