Parallel Encryption of Noisy Images Based on Sequence Generator and Chaotic Measurement Matrix

Table 5

Correlation between adjacent pixels of cipher text image.

Algorithm	Horizontal direction	Vertical direction	Diagonal direction
Proposed algorithm (impulse noise)	0.0498	−0.0035	0.0032
Proposed algorithm (Gaussian noise)	−0.0398	0.0051	0.0042
Reference [30]	0.0586	−0.0021	0.0269
Reference [25]	0.0597	0.0766	0.0083