Constructions and Properties of k out of nVisual Secret Sharing Schemes
Designs, Codes and Cryptography
Threshold Visual Cryptography Schemes with Specified Whiteness Levels of Reconstructed Pixels
Designs, Codes and Cryptography
Digital Image Processing
Visual cryptography for gray-level images by dithering techniques
Pattern Recognition Letters
New visual secret sharing schemes using probabilistic method
Pattern Recognition Letters
A new multi-secret images sharing scheme using Largrange's interpolation
Journal of Systems and Software
Aspect ratio invariant visual secret sharing schemes with minimum pixel expansion
Pattern Recognition Letters
Optimal colored threshold visual cryptography schemes
Designs, Codes and Cryptography
Sharing visual multi-secrets using circle shares
Computer Standards & Interfaces
Winscale: an image-scaling algorithm using an area pixel model
IEEE Transactions on Circuits and Systems for Video Technology
Sharing secrets in stego images with authentication
Pattern Recognition
A Matrix-Based Secret Sharing Scheme for Images
CIARP '08 Proceedings of the 13th Iberoamerican congress on Pattern Recognition: Progress in Pattern Recognition, Image Analysis and Applications
On the security of a visual cryptography scheme for color images
Pattern Recognition
Visual secret sharing by random grids revisited
Pattern Recognition
A secret sharing scheme for digital images based on two-dimensional linear cellular automata
IWCIA'08 Proceedings of the 12th international conference on Combinatorial image analysis
Efficient multi-secret image sharing based on Boolean operations
Signal Processing
Image secret sharing method with two-decoding-options: Lossless recovery and previewing capability
Image and Vision Computing
A comprehensive study of visual cryptography
Transactions on data hiding and multimedia security V
Secret image sharing with authentication-chaining and dynamic embedding
Journal of Systems and Software
On the equivalence of two definitions of visual cryptography scheme
ISPEC'12 Proceedings of the 8th international conference on Information Security Practice and Experience
Flexible visual cryptography scheme without distortion
IWDW'11 Proceedings of the 10th international conference on Digital-Forensics and Watermarking
Aspect ratio invariant visual cryptography by image filtering and resizing
Personal and Ubiquitous Computing
Sharing more information in gray visual cryptography scheme
Journal of Visual Communication and Image Representation
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An aspect ratio invariant visual secret sharing (ARIVSS) scheme is a perfectly secure method for sharing secret images. Due to the nature of the VSS encryption, each secret pixel is expanded to m sub-pixels in each of the generated shares. The advantage of ARIVSS is that the aspect ratio of the recovered secret image is fixed and thus there is no loss of information when the shape of the secret image is our information. For example, a secret image of a circle is compromised to an ellipse if m does not have a square value. Two ARIVSS schemes based on processing one and four pixel blocks, respectively, were previously proposed. In this paper, we have generalized the square block-wise approach to further reduce pixel expansion.