A Color Image Encryption Scheme Based on a Novel 3D Chaotic Mapping

Table 4

The correlation coefficients between the proposed method and other algorithms.

	Correlation direction
	Diagonal	Horizontal	Vertical
Original image	0.9501	0.9690	0.9835
Proposed algorithm	−0.0033	−0.0012	−0.0027
Reference [48]	0.0036	0.0053	0.0085
Reference [49]	0.0024	0.0042	0.0033
Reference [50]	—	0.0681	0.0845
Reference [51]	0.0030	−0.0082	0.0027