Hiding Information in a Well-Trained Vector Quantization Codebook
Jui‐Chuan Liu, Chin‐Chen Chang, Chia‐Chen Lin · 2023
Data hiding schemes can generally be categorized into four types: spatial-domain schemes, frequency-domain schemes, compression-domain schemes, and encryption-domain schemes. VQ or VQ variant compression techniques have been widely used by scholars to design data hiding approaches in the compression domain. Over the past two decades, the index tables generated by VQ or VQ variant-based compression techniques have served as the primary carriers for concealing confidential data.