A Steganographic Method Based on Pixel-Value Differencing and the Perfect Square Number

Table 5

The experiment results use Figure 4 as the cover image.

Cover images (512×512)	Capacity (bits)	Payload; (bpp)	PSNR; (dB)
Lena	215740	0.82	50.70
Baboon	241719	0.92	48.57
Peppers	217290	0.83	50.57
Jet	204682	0.78	50.89
SailBoat	224915	0.86	49.86
Tiffany	210935	0.80	50.86