Entropy-Based Block Scrambling Image Encryption Using DES Structure and Chaotic Systems

Table 7

Correlations of decrypted images with different intensities of noise attack.

Occlusion	Correlations
	Horizontal	Vertical	Diagonal
Original image	0.9677	0.9358	0.9020
	0.8688	0.8378	0.8161
	0.6399	0.6007	0.5880
	0.1430	0.1329	0.1202
	0.1397	0.1457	0.1296