A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Image Data Compression: Block Truncation Coding (Btc) Techniques
Image Data Compression: Block Truncation Coding (Btc) Techniques
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
Invertible Authentication Watermark for JPEG Images
ITCC '01 Proceedings of the International Conference on Information Technology: Coding and Computing
Reversible hiding in DCT-based compressed images
Information Sciences: an International Journal
Reversible Steganographic Method with High Payload for JPEG Images
IEICE - Transactions on Information and Systems
Lossless generalized-LSB data embedding
IEEE Transactions on Image Processing
Reversible data embedding using a difference expansion
IEEE Transactions on Circuits and Systems for Video Technology
A Reversible Data Hiding Scheme Based on Side Match Vector Quantization
IEEE Transactions on Circuits and Systems for Video Technology
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In 2008 Lin et al. proposed a reversible steganographic method with a high payload for JPEG images. Because modifying the quantized DCT coefficients may lead to serious image distortion, Lin et al. embedded the secrets into the middle frequency of the quantized DCT coefficients. Moreover, they limited the number of nonzero values of the quantized DCT coefficients involved in the data hiding procedure. To improve on Lin et al.'s hiding capacity while improving the image quality of the stego-image, this paper proposes a new hiding strategy based on clustering. Experimental results confirm our proposed scheme not only provides a higher payload than either Chang et al.'s or Lin et al.'s scheme but also offers better image quality of the stego-image.