Property Analysis of XOR-Based Visual Cryptography

  title={Property Analysis of XOR-Based Visual Cryptography},
  author={Ching-Nung Yang and Daoshun Wang},
  journal={IEEE Transactions on Circuits and Systems for Video Technology},
A (k,n) visual cryptographic scheme (VCS) encodes a secret image into n shadow images (printed on transparencies) distributed among n participants. When any k participants superimpose their transparencies on an overhead projector (OR operation), the secret image can be visually revealed by a human visual system without computation. However, the monotone property of OR operation degrades the visual quality of reconstructed image for OR-based VCS (OVCS). Accordingly, XOR-based VCS (XVCS), which… CONTINUE READING
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