Abstract:

Based on fliping, a visual cryptography scheme with mask image is proposed, which can share two secret images. In this scheme, two secret images and a mask image are encoded into two shares, which have the same information as the mask image. One secret image can be revealed by stacking the two shares directly. The other will be revealed by turning over one of the shares and stacking over another. The experiment result proves the effectiveness of
the given scheme.

Key words: secret sharing, visual cryptography, secret image, share image