Histogram Modification and Wavelet Transform for High Performance Watermarking

Table 1

Performance comparison of Zhao et al.’s method and the proposed method.

Test images	Items	Zhao et al. [19]	This work
Lena	Capacity	0.1257	0.1511
	PSNR (dB)	50.65	69.51
Baboon	Capacity	0.0329	0.0847
	PSNR (dB)	51.01	60.86
Barbara	Capacity	0.0604	0.1069
	PSNR (dB)	50.91	69.81
Boat	Capacity	0.0858	0.1186
	PSNR (dB)	50.79	72.39
Board	Capacity	0.0547	0.0702
	PSNR (dB)	50.92	55.11
Peppers	Capacity	0.1113	0.1371
	PSNR (dB)	54.12	66.41