Secret Image Sharing Presented by Du-Shiau Tsai

2 Introduction Secret image sharing (Tsai)

3 Introduction Classification of SIS (Tsai) Secret image sharing visual cryptography variant visual secret sharing interpolation method

4 Introduction Classification of SIS (Tsai) Secret image sharing visual cryptography variant visual secret sharing interpolation method

5 Introduction Visual cryptography is a secret sharing procedure for image data Recover the secret by the human visual system Without additional computations and any knowledge of cryptography.

6 2-out-of-3 Visual Cryptography SASA SBSB SCSC

7 2-out-of-2 Visual Cryptography B

8 Introduction Classification of SIS (Tsai) Secret image sharing visual cryptography variant visual secret sharing interpolation method

9 n-out-of-n VVSS-based scheme