Improved Chaos-Based Cryptosystem for Medical Image Encryption and Decryption

Table 12

Simulation results of the NPCR and UACI test.

Image	NPCR (%)			UACI (%)
	Red	Blue	Green	Red	Blue	Green
Lena	99.68109	99.69172	99.68452	33.83002	34.03204	33.69463
Peppers	99.75642	99.70531	99.69347	33.68726	33.59820	33.65629
Baboon	99.74926	99.69642	99.70562	34.03204	33.64322	33.58726
3D ultrasound	99.87215	99.81436	99.75443	33.65629	33.70929	33.66517
3D scanner	99.89427	99.83960	99.89441	34.07125	34.08311	34.19787
3D radiography	99.89853	99.88799	99.89711	34.09614	34.09556	34.08134
3D X-ray	99.87732	99.89493	99.89467	34.09847	34.09597	34.09613
3D CT-scan	99.79369	99.65950	99.76318	33.80594	33.89826	33.89117
1D ultrasound	99.84620			33.82922
1D brain	99.75471			33.79463
1D endoscopy	99.79556			33.89125