Secret Image Sharing Scheme with Threshold Changeable Capability

Table 4

Comparisons of the related secret image sharing mechanisms.

Functionality	Chang et al. (2008) [25]	Lin et al. (2009) [6]	Lin and Chan (2010) [7]	Ulutas et al. (2013) [10]	Ours
Threshold
Threshold changeability	No	No	No	No	Yes
Quality of stego images	40.33 dB	43.02 dB	42.36 dB	46.79 dB	40.02 dB
Lossless secret image	Yes	Yes	Yes	Yes	Yes
Lossless cover image	No	Yes	Yes	Yes	No
Maximum capacity (pixels)