Reversible Data Hiding Using Two Marked Images Based on Adaptive Coefficient-Shifting Algorithm

Table 2

Payload/PSNR performance comparison between various methods (under PSNR value above 30 dB).

Methods	Images
	Lena	Jet	Peppers	Boat	Average
Lin et al. [11]	346,568/30.19	362,847/30.19	342,175/30.19	314,196/30.19	341,447/30.19
Wu et al. [13]	319,816/30.30	411,566/31.35	322,437/31.54	306,708/31.01	340,132/31.05
Yang and Tsai [14]	385,519/31.65	364,951/31.65	341,202/31.65	280,285/31.65	342,989/31.65
Our method^†	716,596/32.29	610,269/33.58	769,364/31.71	702,811/30.60	699,760/32.05

^†Theaverage PSNR of stego-image 1 and stego-image 2 was displayed here.