An Improvement Technique Based on Structural Similarity Thresholding for Digital Watermarking

Table 1

Watermark imperceptibility and algorithm complexity for the original and proposed methods.

	MSE		SSIM		Algorithm complexity: simulation time (Sec)
	Original	Proposed	Original	Proposed	Original	Proposed
LSB	11.28	0.03	0.72	0.98	99	4
DCT-based [12]	50.64	0.5	0.5	0.96	2	22
Wavelet-based [13]	26.03	16.48	0.75	0.95	4	35
CDMA-Wavelet [14]	71.59	9.13	0.42	0.97	228	231