Multi-Chaos-Based Lightweight Image Encryption-Compression for Secure Occupancy Monitoring

Table 4

Correlation coefficient values for horizontal, diagonal, and vertical directions.

Images	Plaintext image			Encrypted image
	H-D	D-D	V-D	H-D	D-D	V-D
1	0.9049	0.8347	0.9068	0.0108	−0.0134	0.0085
2	0.9081	0.8631	0.9480	0.0190	0.0253	0.0179
3	0.9580	0.9020	0.9467	0.0212	−0.0268	−0.0108