A Reversible Steganography Scheme of Secret Image Sharing Based on Cellular Automata and Least Significant Bits Construction

Table 2

Comparisons with previous perfect reversible schemes.

Schemes	Functionality
	Computation complexity	Steganographic method	Without extra expansion/storage	Dynamic embedding	PSNR (dB)	Maximum capacity (pixels)
Lin et al. [24]		Modulus operation	Yes	No	43.38
Chang et al. [25]		Sudoku table	No	No	47.13
Lin and Chan [26]		Modulus operation	Yes	No	47.81
Wu et al. [27]		Modulus operation	Yes	No	37.99
Hu et al. [22]		LSBC	Yes	Yes	51.86
Ours		LSBC	Yes	Yes	51.15