A Novel Multiband Remote-Sensing Image Encryption Algorithm Based on Dual-Channel Key Transmission Model

Table 3

Correlation coefficient.

Algorithm		Horizontal	Vertical	Diagonal
Proposed	Original image	0.9070	0.8793	0.8098
	Ciphertext image	0.0007	0.0064	0.0004
Ref. [13]	Ciphertext image	0.0017	0.0153	0.0046
Ref. [44]	Ciphertext image	−0.0039	−0.0196	0.0027
Ref. [55]	Ciphertext image	−0.0047	0.0025	0.0014
Ref. [56]	Ciphertext image	0.0019	0.0038	−0.0019