Blind Image Watermarking Based on Adaptive Data Spreading in n-Level DWT Subbands

Table 9

Performance comparison with [9] with BER value.

Attack	Proposed	[9]
Average PSNR [dB]	43.13	42.42
Cropping 25%	0.0371	0.0391
Sharpening	0.0000	0.0000
Gaussian Filtering	0.0036	0.0531
Average Filtering	0.0238	0.2568
Median Filtering	0.0111	0.2839
JPEG quality 60	0.0156	0.2188
JPEG quality 80	0.0000	0.0062
Average robustness	0.0130	0.1226