Visual Cryptography for Multiple Secrets - Visual Cryptography and Secret Image Sharing - page 59

TABLE 3.1
Encoding a binary pixel p into two shares
s 1 and s 2 .
p probability s 1 s 2 s 1 s 2

1=2

1=2

1=2

1=2

TABLE 3.2
Implementing the visual one secret sharing
scheme with a pixel expansion of 4.
p Probability s 1 s 2 r = s 1 s 2

1/6

1/6

1/6

1/6

1/6

1/6

1/6

1/6

1/6

1/6

1/6

1/6