Image Watermarking Algorithm Based on Multiobjective Ant Colony Optimization and Singular Value Decomposition in Wavelet Domain

Table 1

Imperceptibility test results.

Image	Algorithm	PSNR(𝐼,𝐼𝑊)(dB)	𝑁𝐶(𝑊,𝑊)
	MSF-MOACO	50.118	1.000
	SSF	49.341	1.000
Cameraman	Xianghong et al. [1]	49.075	1.000
	Liu and Li [3]	45.529	0.998
	Pai and Ruan [25]	55.289	1.000
	Ouhsain and Hamza [12]	53.563	1.000
	MSF-MOACO	54.219	1.000
	Using SSF	51.124	1
Goldhill	Xianghong et al. [1]	49.075	0.999
	Liu and Li [3]	45.320	1.000
	Pai and Ruan [25]	54.844	1.000
	Ouhsain and Hamza [12]	51.892	1.000
	MSF-MOACO	50.942	1.000
	SSF	48.899	1
Lena	Xianghong et al. [1]	49.075	1.000
	Liu and Li [3]	45.472	0.997
	Pai and Ruan [25]	55.186	1.000
	Ouhsain and Hamza [12]	53.192	1.000
	MSF-MOACO	51.026	1.000
	SSF	50.735	1.000
Man	Xianghong et al. [1]	49.075	1.000
	Liu and Li [3]	45.323	1.000
	Pai and Ruan [25]	55.186	0.998
	Ouhsain and Hamza [12]	52.569	0.999