Nonlinear Secret Image Sharing Scheme

Table 4

The comparison result between the proposed and previous schemes for the embedding capacity and PSNR.

Schemes	EC (bpp)	PSNR (dB)
Lin and Tsai [6]	1/2	39.17
Wang and Shyu [7]	1/4	—
Chang et al. [8]	3/4	40.92
Lin and Chan [22]	(𝑡−1)/3	40.01
Proposed	1.74𝑡log2𝑚	44.78