Table 2.

Quantitative evaluation of stego-images generated from six $100\times 100$ grayscale test images after embedding a 1250-character message.

Image	Thumbnail	PSNR (dB)	SSIM	LSB Change (%)	Message Match
House		50.78	0.9973	49.51	$✓$
Lake		50.41	0.9986	50.54	$✓$
Mandrill		50.48	0.9991	49.73	$✓$
Pirate		50.24	0.9990	50.11	$✓$
Cameraman		50.45	0.9961	50.45	$✓$
Mean	–	50.47	0.9980	50.07	–
Std	–	0.20	0.0011	0.39	–