Visual Cryptography for Multiple Secrets - Visual Cryptography and Secret Image Sharing - page 62

TABLE 3.3
Wu and Chen's encoding scheme for visual two-secret sharing
in two shares.
p 1 p 2

s 2

Probability s 1 s 9 1 s 2 s 1 s 2 s 9 1

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/4