A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
A steganographic method based upon JPEG and quantization table modification
Information Sciences—Informatics and Computer Science: An International Journal - Special issue: Intelligent multimedia computing and networking
Digital Steganography: Hiding Data within Data
IEEE Internet Computing
BPCS steganography using EZW lossy compressed images
Pattern Recognition Letters
An adaptive steganography for index-based images using codeword grouping
PCM'04 Proceedings of the 5th Pacific Rim conference on Advances in Multimedia Information Processing - Volume Part III
An additive approach to transform-domain information hiding andoptimum detection structure
IEEE Transactions on Multimedia
Adaptive terrain-based memetic algorithms
Proceedings of the 11th Annual conference on Genetic and evolutionary computation
High capacity SMVQ-based hiding scheme using adaptive index
Signal Processing
Adaptive data hiding for vector quantization images based on overlapping codeword clustering
Information Sciences: an International Journal
A simple image encoding method with data lossless information hiding
Proceedings of the 4th International Conference on Uniquitous Information Management and Communication
Restoration of embedded image from corrupted stego image
Signal Processing
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A tradeoff between the hiding capacity of a cover image and the quality of a stego-image in steganographic schemes is inevitable. This paper presents overlapping codebook partitioning to challenge this tradeoff. The codewords in a codebook are grouped into sub-clusters, according to similarity. Any size sub-cluster is allowed; moreover, a sub-cluster is permitted to overlap with sub-clusters to increase hiding capacity without sacrificing image quality. As a result of this improved scheme, the hiding capacity of a cover image increases, whereas the quality of a stego-image stays the same.