Visual cryptography for general access structures
Information and Computation
Communications of the ACM
New visual secret sharing schemes using probabilistic method
Pattern Recognition Letters
XOR-based Visual Cryptography Schemes
Designs, Codes and Cryptography
Designs, Codes and Cryptography
Probabilistic Visual Cryptography Schemes
The Computer Journal
Image encryption by random grids
Pattern Recognition
Two secret sharing schemes based on Boolean operations
Pattern Recognition
A novel secret image sharing scheme in color images using small shadow images
Information Sciences: an International Journal
A multisecret sharing scheme for color images based on cellular automata
Information Sciences: an International Journal
Image encryption by multiple random grids
Pattern Recognition
Visual secret sharing by random grids revisited
Pattern Recognition
Threshold visual secret sharing by random grids
Journal of Systems and Software
Optimal (2,n) and (2,infinity) visual secret sharing by generalized random grids
Journal of Visual Communication and Image Representation
User-Friendly Random-Grid-Based Visual Secret Sharing
IEEE Transactions on Circuits and Systems for Video Technology
XOR-based meaningful visual secret sharing by generalized random grids
Proceedings of the first ACM workshop on Information hiding and multimedia security
Improved tagged visual cryptography by random grids
Signal Processing
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Random grid (RG) is a methodology to construct visual secret sharing (VSS) scheme without pixel expansion. In some reported RG-based VSS schemes, a secret image can be visually reconstructed only by stacking operation, even thought some light-weight computational devices are available. In this paper, a novel RG-based VSS is developed, where the secret image can be recovered in two situations: (1) when computational devices are not available, the secret image can be reconstructed by stacking the shares directly, and (2) when some light-weight computational devices are available, the secret image can be decrypted by XOR operation. Further, the decrypted secret image quality by stacking operation is approximately the same as that of conventional RG-based VSS. But better visual quality is obtained by XOR operation.