Efficient visual secret sharing scheme for color images
Pattern Recognition
Sharing multiple secrets in visual cryptography
Pattern Recognition
Multiple-Image Encryption by Rotating Random Grids
ISDA '08 Proceedings of the 2008 Eighth International Conference on Intelligent Systems Design and Applications - Volume 03
The alignment problem of visual cryptography schemes
Designs, Codes and Cryptography
Sharing visual multi-secrets using circle shares
Computer Standards & Interfaces
A comprehensive study of visual cryptography
Transactions on data hiding and multimedia security V
IEEE Transactions on Image Processing
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Plane transformation visual cryptography takes a unique approach to some of the current shortcomings of current visual cryptography techniques. Typically, the direction and placement of the encrypted shares is critical when attempting to recover the secret. Many schemes are highly dependant on this stacking order. Within this paper, the scheme presented illustrates a technique whereby this restriction is loosened such that the number of acceptable alignment points is increased by performing a simple plane transform on one of the shares. This results in the same secret being recovered when the shares correctly aligned. The technique has also been extended to encompass multiple secrets, each of which can be recovered depending on the type of transformation performed on the shares.