Novel scheme for hiding data using multiple codebooks

Abstract

This paper presents a data-hiding scheme, which hides the secret data in VQ compressed images using multiple codebooks. The secret data are hidden in the codebook indices after the VQ image compression is completed. The secret data can be extracted from the codebook indices when the decoding of the compressed image is performed. According to the experimental results, the hiding capacity and image quality outperform Jo and Kim's scheme. In other words, the proposed scheme is proved to be capable of supporting high hiding capacity and good image quality.

Keywords:

• STEGANOGRAPHY
• DATA HIDING
• VECTOR QUANTIZATION
• IMAGE HIDING
• LBG ALGORITHM