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In this paper, we propose a data hiding scheme with high capacity in steganography. First of all, we improve the data hiding technique based one neighbor mean interpolation for increasing the image quality of a stego-image without losing any capacity. A stego-image is derived from a cover image which has embedded the secret data. A cover image is generated from an original image by using interpolating...
Data confidentiality is a critical issue in today¡¦s computing environment. When data are exchanged via ubiquitous computing devices, they become even more vulnerable to malicious people since eavesdropping are easy. Data hiding, a technique to hide data into cover media, can reduce the risks of eavesdropping. In this paper, we propose a steganographic scheme based on vector quantization (VQ) that...
This paper presents a novel data-hiding scheme based on side-match vector quantization (SMVQ). While encoding a block of an image, a traditional SMVQ data-hiding scheme only considers the neighboring pixels of the block to be encoded to produce a state codebook, and then uses the index of the closest codeword in the state codebook to represent the block. The major problem of the traditional image...
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