Title :
Reversible Steganography for VQ-Compressed Images Using Side Matching and Relocation
Author :
Chang, Chin-Chen ; Lin, Chih-Yang
Author_Institution :
Dept. of Inf. Eng. & Comput. Sci., Feng Chia Univ., Taichung
Abstract :
The reversible steganographic method allows an original image to be completely reconstructed from the stegoimage after the extraction of the embedded data. The traditional reversible embedding schemes are not suitable for images compressed using vector quantization (VQ) and usually require the use of the location map for reversibility. In this paper, we propose a reversible embedding scheme for VQ-compressed images that is based on side matching and relocation. The new method achieves reversibility without using the location map. The experimental results show that the proposed method is practical for VQ-compressed images and provides high image quality and embedding capacity
Keywords :
cryptography; image coding; image matching; image reconstruction; vector quantisation; VQ-compressed images; embedded data extraction; embedding capacity; image quality; reversible embedding scheme; reversible steganographic method; side matching; stegoimage reconstruction; vector quantization; Biomedical imaging; Computer science; Data mining; Image coding; Image quality; Image reconstruction; Protection; Steganography; Vector quantization; Watermarking; Reversible data embedding; side match vector quantization; steganography;
Journal_Title :
Information Forensics and Security, IEEE Transactions on
DOI :
10.1109/TIFS.2006.885034
