A Secure and Efficient Image Transmission Scheme Based on Two Chaotic Maps

Table 7

NPCR and UACI test results on plain image sensitivity.

Filename	[13]		SIT-SR
	NPCR (%)	UACI (%)	NPCR (%)	UACI (%)
5.1.10.tiff	99.6014	33.4774	99.6162	33.4645
5.1.12.tiff	99.6222	33.4668	99.6093	33.4642
5.1.13.tiff	99.6091	33.4782	99.6119	33.4597
5.2.08.tiff	99.6138	33.4596	99.6080	33.4589
5.2.09.tiff	99.6072	33.4496	99.6117	33.4521
5.3.01.tiff	99.6103	33.4551	99.6107	33.4595
7.1.02.tiff	99.6088	33.4749	99.6140	33.4635
7.1.03.tiff	99.6026	33.4930	99.6081	33.4836
7.1.04.tiff	99.6117	33.4699	99.6025	33.4645
7.1.05.tiff	99.6101	33.4766	99.6083	33.4643
boat.512.tiff	99.6045	33.4618	99.6098	33.4825
elaine.512.tiff	99.6139	33.4918	99.6098	33.4521
gray21.512.tiff	99.6069	33.4660	99.6122	33.4713
ruler.512.tiff	99.6113	33.4394	99.6115	33.4453
testpat.1k.tiff	99.6054	33.4571	99.6091	33.4624
Average	99.6080	33.4695	99.6113	33.4598
Std. Dev.	0.0042	0.0161	0.0028	0.0045

The bold values here emphasize that SIT-SR has better performance than the other scheme.